Appeal No. 2000-0560 Application No. 08/578,636 Kronig, 539 F.2d 1300, 1302-03, 190 USPQ 425, 426-27 (CCPA 1976)). While we might speculate as to what group of parts form the claimed sealing arrangement, our uncertainty provides us with no proper basis for making the comparison between that which is claimed and the prior art as we are obliged to do. Rejections under 35 U.S.C. § 102 should not be based upon "considerable speculation as to the meaning of the terms employed and assumptions as to the scope of the claims." In re Steele, 305 F.2d 859, 862, 134 USPQ 292, 295 (CCPA 1962). Accordingly, we are constrained to reverse, pro forma, the examiner's rejection of claims 9, 10 and 12 through 15 under 35 U.S.C. § 102(b). We hasten to add that this is a procedural reversal rather than one based upon the merits of the § 102(b) rejection. CONCLUSION To summarize, the decision of the examiner to reject claims 9, 10 and 12 through 15 under 35 U.S.C. § 112, second 9Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 NextLast modified: November 3, 2007