Appeal No. 2002-1330 Application No. 09/178,249 (Column 6, lines 10-60.) Smith further describes the introduction of a vapor-phase catalyst such as ammonia to further activate the sol and promote rapid cross-linking. (Column 8, lines 46-50; column 30, line 62 to column 31, line 8.) The appellants’ only discernible argument is that “Smith...does not suggest any flowing of the catalyst over the precursor layer as required by claim 1.” (Appeal brief, page 3.) We disagree. To start, we note that Smith’s catalyst is described as performing the same function (i.e., catalyze the gelation reaction) as the appellants’ recited catalyst. (Specification, page 6, lines 21-23; Smith’s column 8, lines 40-53.) Also, while a preferred embodiment of the invention includes “continuously flowing” the catalyst through the “gel aging chambers,” this feature of the invention is not specified in appealed claim 1. As pointed out by the examiner (answer, page 4), the introduction of Smith’s catalyst vapor into closed chamber 32 (Figure 19C) to catalyze the reaction (i.e., gelation) of the precursor sol film would necessarily result in the movement of confine our discussion to claim 1. 37 CFR §§ 1.192(a), c(7) and c(8) (1995, 1997). 4Page: Previous 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007