Section 2204 - Formation in general(a) General rule.--A contract for sale of goods may be made in any manner sufficient to show agreement, including conduct by both parties which recognizes the existence of such a contract.(b) Effect of undetermined time of making agreement.--An agreement sufficient to constitute a contract for sale may be found even though the moment of its making is undetermined.(c) Effect of open terms.--Even though one or more terms are left open a contract for sale does not fail for indefiniteness if the parties have intended to make a contract and there is a reasonably certain basis for giving an appropriate remedy. 1979, Nov. 1, P.L. 255, No. 86, § 1, effective 1/1/1980.