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086476 AI generated

Unilateral promise contract valid without seller signature if buyer assumes duties like paying deposit.

Case Number 086476
Court / Authority
Jurisdiction Portugal (PT)
Decision Date
Outcome Allowed / Granted
Open official source Machine-readable Markdown (.md)

Legislator summary

AI generated

The court held that a unilateral promise contract is valid even if the promisor does not sign the document, provided the promisee assumes specific obligations such as paying a deposit. The parties argued whether the lack of the seller's signature invalidated the agreement, but the court found the essential elements of the contract present. Consequently, the court ruled that the absence of the promisor's signature does not negate the contract's formation when the promisee has fulfilled their duties.

Legislator headnote

Official

CONTRATO-PROMESSA PROMESSA UNILATERAL SINAL PROMITENTE-COMPRADOR FALTA DE ASSINATURA

Keywords

AI generated
unilateral promise contract contract formation validity promissory note signature deposit obligation civil code provisions

Cited Legislation

AI generated
Art. 230 do Código Civil
Art. 231 do Código Civil
Art. 232 do Código Civil

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Full text

[Nº CONVENCIONAL] JSTJ00027240

[Nº DO DOCUMENTO] SJ199503210864761

[PRIVACIDADE] 1

[PROCESSO NO TRIBUNAL RECURSO] 56471

[TEXTO INTEGRAL] N

[TRIBUNAL RECURSO] T REL LISBOA

[URL] https://www.dgsi.pt/jstj.nsf/954f0ce6ad9dd8b980256b5f003fa814/451A8EB3BA5E8943802568FC003AC8EB?OpenDocument

SUMÁRIO

I - Tem a natureza de contrato-promessa unilateral aquele em que apenas uma das partes se obriga a celebrar certo contrato, não obstante a outra parte assumir determinados deveres, como o de prestação de sinal.

II - O documento em que se formaliza o contrato-promessa unilateral não tem de ser assinado pelo promissário.