Appeal No. 1997-1498
Application No. 08/251,148
appellants’ disclosure. See, e.g., In re Oetiker, 977 F.2d
1443, 1447-48, 24 USPQ2d 1443, 1446-47 (Fed. Cir. 1992)(Nies,
J., concurring); In re Fine, 837 F.2d 1071, 1074-75, 5 USPQ2d
1596, 1598-1600 (Fed. Cir. 1988). The burden of producing a
factual basis to support a prima facie case of obviousness
rests on the examiner. In re Warner, 379 F.2d 1011, 1017, 154
USPQ 173, 177-78 (CCPA 1967).
The claimed subject matter is directed to “a visually
clear blend of thermoplastic polymers” comprising a
polyetherimide and a polyester of an acid component comprising
2, 6-naphthalene dicarboxylic acid and a glycol component
comprising 1,
3-trimethylene glycol, 1, 4-butanediol, 1, 5-pentanediol, 1,6-
hexanediol, 1, 7-heptanediol, neopentyl glycol, 1,4-
cyclohexane-dimethanol and diethylene glycol. See, e.g.,
claim 1. When 1, 4-cyclohexane dimethanol is used as a glycol
component, the amount of 2, 6-naphthalenedicarboxylic acid in
the acid component is at least about 30 mol%. Id. Moreover,
according to Table 1, on page 12 of the specification, to
obtain “a visually clear blend of thermoplastic polymers”, not
8
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 Next
Last modified: November 3, 2007