Claim [1] rejected under 35 U.S.C. 112(a) or pre-AIA 35 U.S.C. 112 , first paragraph, as based on a disclosure which is not enabling. The disclosure does not enable one of ordinary skill in the art to practice the invention without [2] , which is/are critical or essential to the practice of the invention but not included in the claim(s). See In re Mayhew , 527 F.2d 1229, 188 USPQ 356 (CCPA 1976). [3]