Richard Lawrence Stevenson v. Grentec, Inc., Richard Lawrence Stevenson v. Mojo Boards South Bay Recreational Products, Inc., Richard Lawrence Stevenson v. Wayne Brown D/B/A Wayne Brown Surfboards

652 F.2d 20 211 U.S.P.Q. 1020 Richard Lawrence STEVENSON, Plaintiff-Appellant, v. GRENTEC, INC., Defendant-Appellee. Richard Lawrence STEVENSON, Plaintiff-Appellant, v. MOJO BOARDS; South Bay Recreational Products, Inc., Defendants-Appellees. Richard Lawrence STEVENSON, Plaintiff-Appellant, v. Wayne BROWN d/b/a Wayne Brown Surfboards, Defendant-Appellee. Nos. 79-3771, 79-3772 and 79-3773. United States Court of Appeals, Ninth Circuit. Argued and Submitted June 3, 1981. Decided July 27, 1981. Keith D. Beecher, Los Angeles, Cal., for plaintiff-appellant. Charles E. Wills, Wills, Green & Mueth, Los Angeles, Cal., for defendant-appellee. Appeal from the United States District Court for the Central District of California. Before DUNIWAY and CANBY, Circuit Judges and BATTIN, District Judge. * CANBY, Circuit Judge. 1 Stevenson appeals the ruling of the district court granting Grentec's motion for summary judgment and declaring his patent invalid as obvious. We affirm. 2 In 1971, Stevenson received a patent for a skateboard with a foot depressible lever at one end or at both ends of the board (kicktail board). The kicktail invention improved the maneuverability and safety of…