Appeal No. 1997-0144 Application No. 08/424,223 rejected under 35 U.S.C. § 103 as being unpatentable over Bettcher in view of the admittedly known normal strength fiber or yarn VECTRAN M described in appellant's specification at pages 2- 4. Bettcher discloses a cut-resistant yarn (Fig. 1) having the construction broadly set forth in claim 1 on appeal, with the exception that this patent does not disclose or teach that "at least one of" the core, first wrapping and second wrapping of the composite yarn therein be comprised of a liquid crystal polymer fiber having a tenacity of no more than 10 grams per denier. However, Bettcher does teach that the yarn therein has a second wrapping or winding (14) which is preferably one having low friction, light weight, a silk-like hand, that is fast drying, resistant to light and low in cost, preferably, for example, nylon or a polyester (e.g., Dacron), both of which are recognized as normal strength fibers. Similarly, appellant's specification (pages 2-4) and brief (pages 13-14)1 indicate that VECTRAN M sold by Hoechst Celanese Corp. is a normal strength fiber having good abrasion resistance, high impermeability, excellent property retention over a broad temperature range, low moisture 1 While appellant indicates on page 13 of the brief that a brochure on VECTRAN liquid crystal polymer fibers was submitted to the examiner, we find no such brochure of record in the application file. 11Page: Previous 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 NextLast modified: November 3, 2007