Appeal No. 2006-1653 Παγε 5 Application No. 09/840,434 conclusions regarding this rejection can be found on page 3 of the final rejection and page 4 of the answer. The appellants argue that the toothed surfaces of Aydelott are not generally flat. We do not find this argument persuasive because the back side surface of both the Ichikawa sprocket surface (see 6A in Figure 1) and contact surfaces of the sprocket are flat at the teeth in Adelott. Appellants also argue that Aydelott does not disclose a link plates forming interleaved rows as and two teeth on one side of the chain and a back side surface that engages a sprocket required by claims 7 and 8. We do not find this argument persuasive because the examiner relies on Ichikawa for teaching interleaved link rows that engage a sprocket. Moreover, “[n]on- obviousness cannot be established by attacking the references individually where the rejection is based upon the teachings of a combination of references.” In re Merck & Co., Inc., 800 F.2d 1091, 1097, 231 USPQ 375, 380 (Fed. Cir. 1986). Appellants also argue that Aydelott does not describe a sprocket with flat surfaces that meet to form low profile protrusions as required by claim 6 from which claims 7 and 8 depend.Page: Previous 1 2 3 4 5 6 7 8 NextLast modified: November 3, 2007