Legislator Jurisprudence & Législation
ATAS/99/2004 • CJ GE ATAS/99/2004 Généré par l'IA

Written Contract Modification Enforceability Dispute

Numéro de cause ATAS/99/2004
Autorité / Tribunal
Juridiction Suisse · Canton de Genève (CH-GE)
Date de la décision
Issue du litige Rejeté (Dismissed)

Synthèse Legislator

Généré par l'IA

The case concerns a dispute over the enforceability of a written agreement, where one party claimed the agreement was rendered void by a subsequent verbal modification concerning the scope of an indemnity obligation, while the other argued the verbal change was ineffective due to the contract's merger clause and lack of consideration. The court reasoned that, absent fraud or mistake, the clear and unambiguous language of the written contract, particularly the clause stating that no modification is valid unless in writing, controlled; therefore, the court held that the written agreement remained in full force and effect, binding the parties according to its original terms.

Regeste Legislator

Généré par l'IA

Art. 66 al. 1 LTF, Art. 68 LTF; Written Contract Modification Enforceability Dispute: The court reasoned that, absent fraud or mistake, the clear and unambiguous language of the written contract, particularly the clause stating that no modification is valid unless in writing, controlled; therefore, the court held that the written agreement remained in full force and effect, binding the parties according to its original terms.

Mots-clés

Généré par l'IA
obligation de conclure déclaration d'exécution validité de clause compromissoire conflits de lois compétence en matière de contrats conclus par les consommateurs partie au contrat

Dispositions légales citées

Généré par l'IA
Généré par l'IA

Questions juridiques clés extraites par Legislator

Généré par l'IA
Art. 66 al. 1 LTF

Cited in the dispositive section regarding the allocation of costs.

Art. 68 LTF

Cited in the dispositive section regarding the allocation of costs.

Vous souhaitez savoir comment cet arrêt s'applique à votre dossier ?

Analysez cette décision avec la législation fédérale, le droit cantonal, la doctrine et la jurisprudence subséquente dans Legislator AI.

Ouvrir dans Legislator →

Texte complet

     

    &'()*&+* ,&--&+(

.,

 ,!  ,"    "

%/  *++(

)0  1 

  

% ,2222222222 



"33 ,"  4 #5,     !"#  $ %&'# (&((    () **+,

                    !"# " $%

- &.(&-

 3,

(0 1* 2222222222# ,  3 (!''# +*,  $4  5 6#  7*,   89,  : 5 ;<$*5 *7**  47 =*- $4 ;> 4  (' :* (!?'# @ *  %/ A $ +*0  *# * $7*  * +  "B/&) 60 "/0

&0  '  ! ,+C (!!"#   2222222222  66,  D$A*   *+D* $ , +D,*8 =1>    7*  9,0   *D*8,  ,D  9E 7  DA#  A* * 6+* * '- F   *A F- " 7  $  $,* ** 6*  +$*   $* ,*   A,  *, @  A C*,0

)0  () :7* (!!?#   2222222222   **8    9  G  $,, 9, 5 *75 '- F  F- "   $,, @  +*  $ 9 $8  %' ++ 7*, $ *8 7*  (? ++   $ 7,C5  '# F  " =$A4 *>  9 D66   * * )

 *7 '- F0 H* @  *7*# 9*,,  ,,  *$*,  7* @ (// I :89 " :* (!!?#  @ 8 *  $*  +$* @ '/ I# $* @ (// I 4  &" 7+C (!!?0

%0 4  ? C (!!!# 9,  ,,  *$*,  7* @ (// I * @  6  +C* **   6 ,*  5   * DA =D*>0  (& 7+C (!!!#   2222222222  66,  7 1    +C*  9*,,   *D*8,  *$A* 5 ,D &-)  '-H( ** 89 $* A* * ** ,*,  <, DA @  A  &-)0  * ,D -: @ &-) ,* @ *,   *+*   +0

'0  & + &///#  7 1 +C* $*8, $  +J+ +,*  $+*  $,*  *D*  *$ *$A* +C* (-&# &-)  '-H(#  *$A* &-) 9+$D 9 A* ** 4 ,*,  <, DA0

F0  (!  &? 7* &///# 9,  ,, A$**,   7*  A+D*   2222222222 5 A<$*5  G  * +* $ *  *++C*** $K,0

.(%'&.&//&

- ).(&-

"0  (/ +* &///# 9*,,  ,$,  +  $*  9- *7**, $4  966*   9-*7**, =*-$4 9 ># A* J +*  C,,6* 9 0

?0  (' :* &///#   2222222222# +,* *  9,#  ,*D,  $$ @ 9*  9   8 *  **8, 8  $* 66*  D* DA $* 7+C (!!!0 $4 9A$*** @ G#  D* DA 7* + *$# +*  $*  $*D*   +CD*  C  *** $78, $  +J+ $**  $ $ $  * 8 9A0 9, $,*   5 ,7* $4  $K,0  #  $** 97* ,,  ,*  6* +0  $,**  $* 9*7*, @ '/ I @ $*  ( C &///0 9*,, , ,# *  7* AC*+ $  AD0   $$   $*, $6* :*  $$ +,*#  +,*  5$*8, 8 9, $7* 7*    $** *  C0

!0  & 7+C &///# 9,  $*  *7*, 9, @ '/ I0  7** 7*D A $ +*# @ *  *5 A $ : $ * :0  +,D+   A*  7* * 7* $+*  ,*  +C   ,$+  7*0 H  +,* *#  D+*  5 9*7*,  $** $ 7*DC0

(/0  &( + &//(#   2222222222# +,*-*  9 #  $$,  5$* 6*  ,+* * 9,  $7* $ 7* @ F/  "' I0  7*#  7*  +C* $ ,*  66 $A *8  * $7* *+   $**0 H*  $  7* *+$*  66 $A *8#   *7*, $ ,D4 ,* $-J $*C @  5 $,* 8 '/ I0

((0  ("  &" 7* &//(# 9,  ,, A$**,   A$** G- H $   +C**8 DA 9DD7* $D*7 $* ,C &//(0  ("  (? 7* &//(# *  C* 5 75 5+# *  1 +C*   *D$A* ,-**0   L2222222222# 8* 7* ,*, 91#  *D*8,  $* ,* ,D,,*7 * &- )  '-H( ** 89 $* D*+ $,-$,*  $ 7,C  )# +* 97* ,, * A* * * $*   $AD*8  *0    2222222222 8* 7* 66,  *D$A*# * 97* * ,, 9+0   ;2222222222   A$**  5$*8, 8# 7 9C   ***8#  *+

.(%'&.&//&

- %.(&-

+,* 7* ,, +*  M7# 8 7* $+* 9C*  +,** **8 *6*0

(&0  &( +* &//(#   2222222222# +,* AD,  95$*  9,#  +,   2222222222 ** 895 A<$*5  G $* *D+  9,0  ,** ++ 7* *  $** $* 8  $* $7* D+  +$  7* @ "' I# A 8  $6* 9, 9N* $  *** $A *8 5$*0  # 9*,, * 7* +C, ,$*6  * A** 7* 9*  5+ $,**, 7*  *0

()0  )( +* &//(#   2222222222 *  ,$ 89* $* 8 9, $7* $  *7*, @ '/ I @ $*  ( :* &//(0  *  ,D+ +*  ,+,  9A$*** 5 A<$*5  G0

(%0  (& :* &//(#   2222222222# $,**  +,* *   +* A+*+#  ,*D,  $$ @ 9*   2222222222# 8 7* **,  7* +,*  () :* &//(0   *D*8,  DA  +$*+ *  D *  +,*+*#  *$A* &-) 7 $* A* * *-6+* $ +$*7# $C      6 ,*   * DA   *$A* '  +$* ** $C      6 DA0   $*  7# * 9 7*  * ***80  7*#  *+ 7 97* $ ,, $*7*  +*4 ,8#  5    ,, J,  89* 7*  66 C,,6*8   $*   ,, *,    $D++  7D $D*60  $* 89 $D++  ,,* $  D , *, @  5*  +* 7* $+  +,**    +$+D* 0

('0  &% :* &//(#   O2222222222# $ A*#  ,*D,  $$ @ 9*   2222222222# 8 7* ,D+ **,  7*  &"

:* &//(0 $4 7* 5+*, 9,  !  (F :* &//(  7* $* *   *# *   @ 9C  C + $7 J $C  9$$**#  9DD7*    $*   0  95** ++ $  C ,$*6#  C +6+#  C   $*,   C 6*0

(F0  &/ 3 &//(#   2222222222  ,*D,  $$ 95$* @ 9*  9   8 *  *D*8,  +CD* ++ A*8 7 ***  6+  D* DA#  DA

.(%'&.&//&

- '.(&-

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

("0  &% 3 &//(#   ;2222222222   A$** G-H  ,$   2222222222 8#  7  *  9,#  A*  AD   *7*, $**$# *  *   $C**, *A,  $ $,#  D+*  7* @ "' I ,* $*C +$    , **8   9A$***0

(?0  )( C &//(# 9   ,*D,  $: 9$*     C   *D+ **     9**   +0 9, 7* * @  +*- C,   5 9*7**,  '/ I#  ( C &///  )( :7* &//(#   + R * * $ $  *7*, @  5  "' I- ?/ I  7+C &/// ,:@0

(!0 H* @  $:# 9*,,  +,  **# 8* 9 ,,  ('

7+C &//(0   5$, 89* *  *  95$*   2222222222 $,* 89* * $ $  *7*, $6* 4  +* 93 &//(0  97* :+* ,,  +  7* @  5 $,* @ '/ I $*  $*  7*  7+C &///  * 7* +J+ 3 9J + @ $* $*0 9,* *8+   *7*, $6* 8    6** * P

.(%'&.&//&

- F.(&-

9* $7* C,,6**  $* :  $#   9,* +0  A** 8  * @  +*- * ,5+*,0

&/0  (' 6,7* &//&# 9,  *6+, 9  89* ,* @ 7  *$*,  7* $*  +*  7+C &//(# * @  DD7*   ,  ,0   :*  *6*  ? 6,7* &//&   2222222222 6*+  J  7* :89@  A$*** @ S- H- H $,7  &! :* &//&0

&(0  () + &//&#  8J  9 #   2222222222 *  +*  $$  ? ,+C &//(   22222222220  * *+* 8    $*  *  *7 +C* 7 ***   6 DA  $,*    9 , 5 A*8   $ A+*8# $ 8 9C   $*  AD 7* J +***$**0    5$*8, 8# * 9, 7* 6*  * *DT  7+C &//(# * 7* $7* C*< $ @ '/ I0

&&0  &/ + &//&#   2222222222#    * @ 9 #  7, 8   2222222222 7* **8, 89* $* 8 9, $* $  7* @ '/ I0  +,*-* +**  8 9*,, $7* * @ $   $  7*   :0  6* 8  *  7*  7* 4 ,*D,  7* $  9- *7**,0 9 6U DC#   2222222222 *+* 89* 7* V  8 W   +*0

&)0  ,**  && +* &//&# 9    , @ 9,  +*-  ( C &///  )( :7* &//(   6   D, 9*7**,  '/ I# ** 89 +*- +$,+* $ :*   +*- $ 60

&%0  *  (% :* &//&# 9,  *:,    ,**  D  6* 89*  7*  9*$*,  +**  *7*, @ '/ I $  *5 +*0  $,*   ,**7 4 7*7 =+CD*# **8  D*> ,* $, $  J  7*# $* $  A$***0  7* $*  *7*, @ '/ I  ( +* &//&# +* *  $7* +  5 9*7*, $,*   +$  $ *+$ * ,* ,*   *+ ,* 0

&'0  $,7*  (F 3 &//&# 9   $$,  :     6  $**4+   $$ 95$* 66, $   2222222222#  * 9 7* $ *  9,0

.(%'&.&//&

- ".(&-

&F0  &F 3 &//&#    ,$*8,  5$*8 8#  7  $ 9+,**   **# * 7* ,*,    A*D*#  6 12222222222#  7 9   +,* *0  Q- 7   ,, 6*5,  (& $+C &//&#    **, 9* 9 ,* $$,+*0

&"0  &" C &//&#    +* @  ++**     +*4 H.  =+ *C  ,>     +,* *  &' C 6* ,6, @  7*   2222222222# D @  G# +  1  ++C *6,* DA +# +*  ,65* A*, DA0  $** 7* *+,   * +$, @  +*,  C* +$,+*0  +,* * *+* 89* ,* ,*  +**   @ '/ I  9 9 7 10

&?0  (& 7+C &//&#   2222222222  C*  *D* LHH   66,  1  A*   *D*8,  *$A*  +,*8 7  DA  %- '  6A A* ,C#  *$A* $*7 &-) 7 ,CA  6**  9 6*C5#  A 6* ,C C*,#  *$A* $*7 ,C  %- '  A* 7 ,CA 9A 6*   *$A* $*7  A* *,  '-H(0

&!0  F :7* &//)#   2222222222  $$,  ,   *+, 8  5  $*,  7*  $   2222222222# * '/ I# ,* ,:@ * ,  &///#  8* ,* +$,A*C   + R 9,  ,    9,* $ DD7, C:*7+  C+ $*  0  * 5+ *D*8 +*  ,,+ $< +* D7#   C:*6 = 1>  *D* * 9+  * +*  *   5+ 66,   $*0  5$* +***$** 66, ,*+   ,7,  $*,  7*   @ ?/ I   $ 5,# *  :*6**  9 *0

)/0 H  C# 9   $*,   *  " :7* &//)0

.(%'&.&//&

- ?.(&-

 ",

(0  * 6,,   $* D,,  *   *  F C &/// = >  ,  7*D  ( :7* &//)# N  +C +*6**   +*  9-*7**,0   9$4 + 6* ,D* $  *$**  7*D :89 )( ,+C &//&#  ,D  $**$  8  :D   * 9 $ @ $  *,*  +*6**  *   9,  6* $,* @   ,+*   ,** **D* = L (&"  %F"# *0 (# (&(  )?F# *0 (C X 60 ,D+ *$** **# 0 ?& 0 (  >0  $, **D   ,8 5+*, @  +*4  *$**   *  9-*7**, = >    4D+  7*D :89 )( ,+C &//& = >0  *$** ,D  4  *,   * 0

&0  * D7*  9D** :*** =>  ,, +*6*,   **,# 4  ( 3 &//)#  *C    *0 6+,+ @ 90 ) 0 )  *$** **#   ** 7 9,  7*D   *  $ 7  ++**     +*4 9-*7**,  ,, +* 966*  *C    *#   * *8#   *  +*4 9-*7**, ++ =60 0 'F >0  +$,  *C  ,  ** ,C* $ :D   9$40

)0 :,  +$ *    6+ $* $  *# * 7* 9+  7C**,   =F!    ?% *   * 6,,  9- 7**  7*7#  H>0

%0  $, **D $   $*, ,*  7*  # # ,8++#   * ,7 @  +*- 9*7**,0

%0 90 % 0 (   *$ 8 9*7**,   *+**   $*,  D*# $,+, $+   D ,# 8* , 9 * @  , $A *8#  + $7 9 *6*+*, D,*# 9 +*  9 *0

 89 *7**, * # *  ,*#  A8 # 89 *D* +,* $* * $, $  $,**  8 * +* 

.(%'&.&//&

- !.(&-

,7*  *+** *+$   $*,  7* =  D*> = L (&"  &!!>0

 +,*  *   7* 8   8* +,*0   $$# * * ++ C:*7  C **8  $* 5$*+, $  $ ,0   #  D,,# +*  7* +,*  966*0  KA  +,* * @ $  :D+  B,  ,  @ **8  8 +  $ 8 *7*, B,  *$C  7*0  #  , +,* *  ,,+ * $ ,+* 8 75  $ # *C+# 5*D  B, = L (&'  &F( *0 %# (('  ()% *0 &# ((%  )(% *0 )# (/'  ('?

*0 (>0

  8*   7 $C 9 $$ +,*#  8*  ,+*# 9 8  $* **D*5 *+$ * 6* 9C: 9 , 6*,# 8  $$  6   5+ +$# 89* $ ,D+  *,*  $* 5$*+,# 89* * ,, ,C*  $* *  * =+4># 8  *$*  5 +,* * *  6* 8  *  95$ * C* +*7, = L (&&  (F/ X H &///# $0('%>0  *  +,*  6+* 8 @ 9$$,**  9*$*,  7*  9,   7 $C *6,* @   $,** = (!??# $0 '/%>0

 *# 8  5$* ,     $, +***7  ,C* $  $,** #   C 9C7* $$6*  9*7*D* +$4# ** 89 $* *  *#  8  5$ C* @  , 7*#  :D  *  , * D+$ 89 **   $+     C*-6, = L (&'  )')>0

%0C  9$4#   *4 89* 9 $  +  7* 89@ '/ I  *  $,*   ,**7 4 7*7   6+  +CD*# **8  D*0  * ,* 7 *66**  +**  *7*, @ '/ I $  *5 +*# $7  ,*  J  7* 89* 7* C* ** 8  A$***  * 7* 6* 9C:0

1D, 97*  # 6  $   8  *D+ +,*5 6*D  *  $+ $  A   0  66# 95$*   2222222222 ,$ 5 *4 +*,   :*$   $J $  6 @  **8 P  $**  5+*,   8 6*# *  )/ +# &/  )/ +*  (?

.(%'&.&//&

- (/.(&-

:* &//(   6   C *  * +,*  9,0 7  ,*D  5$*# * 9 A,    5 $,**#   2222222222# $,**  +,* *   +* A+*+#    O2222222222# +,* $ A*0  5 $**  ,D+   $$ $C  5A*6  @ 6* 7* 9$$   95+     9,   *0  *   2222222222 8 @  $*, ,*  7*  ?/ I   +$  7**  *C# 9 $ 89  ,, C, $  *    ;2222222222   A$** G-H0

  @ 7 @  ,D 8    2222222222#  +,* *  # *+ 8  $*, ,*  7*  9, +  '/ I0  $$,** +,*  * @   7* 9** $   C*-6,  95$* ,*, $   2222222222   + R  *  +,*  6+*   7 $C *6,* @   $,** ** 89* 9 ,, $$,0

4 # 9 @ : * 8 966* **+,  6*5,  5 9*7**,   @ &/ I @ $*  ( 7+C &///#  @ 8   * $ $  *7*, @ ?/ I $< 89@ '/ I0

  @ ,+* @ $*  8  :89@ 8 ++  * @  +*-  9*7**,    $,0

'0 90&? 0 (   $,7* 8 B,  * @   B*  *7* @ %/ $   +*0    9 8 * 9, $,  *7**,  %/ $ # 9 +* $  *7**,  '/ $   +*  *4 4 FF &.) I  +* 9*7**,0

5 +  90 &! 0 (  #  * @   $ *  $ < * @   4 8 9, $,  *$*,  D* C  %/ $   +* =7* ># * @   4 8 *  $,,#  + #  *$*,  7*  %/ $   +* $  ,  *$* C =7* >0    , 4  ,C  +*   8  * @    $* *# +*  $ < 4  +* 8* *  *5-A**4+ *7*  9, =0 &! 0 &  >0

90 ??    $,*  8 *  $*,  D* 9 , 9+,*# *  *  *, 8  AD+ $$*+#   ,A,#   $*   * 5 $* 4 89 $ 9 @  8 9+,**

.(%'&.&//&

- ((.(&-

,  +**   Q D $,*0   7  +J+ 89  AD+ ,+*  , * +* ,:@#  *$* C   89 +$** $A* * @ *0    $, 9 ** *C# 89 7 ,,**   $*,  D*  $*C# ++    $$  7* $7**   $* 9 *7*, *7 @ 9*0    #   * +$  9+,** *7 8 *   $* * +*  *$* C#  89* $N 7*+CC 89  +** = (!?% $0 ()">0  # 8 * J $*# $  $+*4 6*   +J+ +$#  ,**  9* 9  $ ,7, *7* 9  *6,*  +J+  ,**  $$*#  ,*   $$*    $ 66 @ 9  ,* +*, @ 90 ?? 0 (  0  9 $  $, 9 ,7** = (!?) $0 %?"# (!?/ $0 F!'>0

'0C  9$4# 9   6*5,  * @  +*-  ( C &///  )( :7* &//(0  +*4  $,  6+ 5 *$** ,D +*,#   + R    ,,  *$*,  7* @ (// I 4  ? C (!!!  R  * @  +*- 7*  $* *  , $4# *  ( C &///0  @    )( :7* &//(  $  $$*  * +*-# 9  9 6,  95$*   2222222222 $ * 8   ,*  +  7* @ ?/ I 4 ,C 7+C &//(    +$  * +*  8  $,7* 90 ?? 0 (  0  * 9 4  $ **8C0

F0  7   8* $,4#    :,   ,**  9   && +* &//& 6*+,0

.(%'&.&//&

- (&.(&-

  ",3  ,!  ,"    "

% 67   8  9   4: ';* "<

  7 

, 7C    (% :* &//& *:, $ 1* 2222222222 @ 9   ,**  9   && +* &//& X

% 7

(0  : X

&0 6*+  ,**  9   && +* &//& X

)0 * 89* 9 $ $U 9,++ * , 9*+*, X

%0 6+  $*   8B $7 6+    $, J   ,*  )/ : 4  *6** $ $* ++, ,  *C 6,,  # HAY*QA68* F# F//%   #  * 5+$*0  ,*  $ J $D,0  +,+* * P > **8 5+ 8B ,**   ,* C*  *  $   ,** 8,X C> 5$ $ 8 +*6 * *+ $7* +   ,**X > $  *D     $,0 H*  +,+*  * $  * ,,+ ,+,,   > C>  > *-#  *C 6,,    $ $   +*4    8B* 7 , *7C0  +,+*   +*   +   $7# 8*  :*# ** 8  ,** 8,  B7$$  8   ,, 5$,*,   =0 ()&# (/F  (/? >0

 D66*4 P  ,* P

GT  Z 1   1 

 ,*-:* P L 1 

 $* 6+  $, J  *6*, 5 $* ** 8B@ B66* 6,,   * $  D66

.(%'&.&//&