Okla. Stat. tit. 12A, § 2-602
Oklahoma Code Comment
(1) Previous Oklahoma law is in accord. Oklahoma has held in many previous cases that an unreasonable delay of the buyer constituted a "waiver" of the defect, and thereby prevented rejection. Wright v. Miller, 109 Okl. 47, 234 P. 366 (1925); Western Silo Co. v. Cousins, 76 Okl. 154, 184 P. 92 (1919); Brown v. Davidson, 42 Okl. 598, 142 P. 387 (1914); Marks v. Stein, 61 Okl. 59, 160 P. 318 (1916). What was a reasonable time depended upon the circumstances. In T. H. Rogers Lumber Co. v. M. W. Judd Lumber Co., 52 Okl. 387, 153 P. 150 (1915) it was held that the buyer acted within a reasonable time when goods were purchased for resale and the defects were not discovered until some time later when his customers attempted to use the goods.
(2) (a) Previous Oklahoma law is apparently in accord. Marks v. Stein, 61 Okl. 59, 160 P. 318 (1916) (exposing goods for sale after knowledge of breach is a "waiver" of defect.)
(b) and(c) There are no previous Oklahoma decisions. Note that a buyer, who has paid part or all of the purchase price, has a lien in the goods to secure the return of the purchase price.' Section 2-711 . See also Section' 2-603 which provides more fully the buyer's duties as to rejected goods.
(3) This is self explanatory.