Under the statute it is the claims of the patent which define the invention. See White v. Dunbar, 119 U.S. 47, 51, 52; McClain v. Ortmayer, 141 U.S. 419, 423-425; The Paper Bag Patent Case, 210 U.S. 405, 419; Smith v. Snow, ante, p. 11. And each claim must stand or fall, as itself sufficiently defining invention, independently of the others. See Carlton v. Bokee, 17 Wall. 463, 472; Russell v. Place, 94 U.S. 606, 609; Leeds & Catlin Co.v. Victor Talking Machine Co., 213 U.S. 301, 319; Symington Co. v. National Malleable Castings Co., 250 U.S. 383, 385; Smith v. Snow, supra; Walker on Patents, § 220, 6th ed.
Altoona Publix Theatres, Inc. v. American Tri-Ergon Corp., 294 U.S. 477, 487, 55 S.Ct. 455, 459, 79 L.Ed. 1005 (1935)(emphasis added).