A note which does not contain any of the particulars stated in Article (622) above shall not be considered a promissory note, except in the following cases: 1. Where the date of maturity is not stated, the promissory note shall be deemed payable at sight. 2. Where the place of payment or the maker's domicile is not stated, the place of issuing the note shall be considered the place of payment and the domicile of the maker. 3. Where the place of making the note is not stated, it shall be deemed to have been made at the place indicated next to the maker's name or at the place where he effectively signed the note.
Interpretation and application must be checked against the official text and current version.