- § 2-205, which states that an offer is firm and irrevocable if it is an offer to buy or sell goods made by a merchant and it is in writing and signed by the offeror. Such an offer is irrevocable even in the absence of consideration. If no time is stated, it is irrevocable for a reasonable time, but in no event may a period of irrevocability exceed three months. Any such term of assurance in a form supplied by the offeree must be separately signed by the offeror.

However, even when the period of