Appeal No. 2002-1190 Application No. 09/023,470 As recognized by appellants, the relevant inquiry is whether the original specification reasonably conveys to one of ordinary skill in the art that appellants had in their possession the concept of what is presently claimed. In re Anderson, 471 F.2d 1237, 1244, 176 USPQ 331, 336 (CCPA 1973). In particular, although appellants acknowledge that the claim language "said resin being free of boron nitride" is not disclosed in the specification, the dispositive issue on appeal is whether appellants' original specification would reasonably convey to one of ordinary skill in the art that the fluoropolymer resin comprising alkali metal nitrate is free of boron nitride before extrusion. Like the examiner, we find nothing in the original specification or the present record which indicates that appellants conveyed the concept of processing only fluoropolymer resins that are free of boron nitride. On the contrary, appellants indicate in their Brief that one of the contemplated utilities for their extruded resin is wire insulation, and Buckmaster, of record, discloses that it was known in the art that foamed fluoropolymer resins are used for wire insulation because of a lower dielectric constant, and that "boron nitride is attractive because it is thermally stable, chemically inert, has excellent electrical properties . . . is white and has low -3-Page: Previous 1 2 3 4 5 6 NextLast modified: November 3, 2007