Appeal No. 1997-3478 Application 08/397,648 reference to Fujita fails to teach or suggest at least the feature of a disc cassette and shutter where the disc housing has an angled back wall as defined in claims 1 to 6 on appeal. Representative independent claim 1 is reproduced below: 1. A disc cassette comprising: a case in which a disc-like recording medium having an information recording area is rotatably received, said case having an opening through which at least a part of said information recording area of said medium is exposed; means for defining a rectangular recess on a front area of said case where said opening is positioned, said rectangular recess being defined by two opposed side walls, a back wall and a bottom wall, said back wall being oriented to face forward; and a shutter slidably engaged with said rectangular recess in a manner to selectively open and close said opening, said shutter being slidable in a direction parallel to a direction in which said back wall extends, wherein said back wall of said rectangular recess has a surface inclined relative to said bottom wall, said back wall and said bottom wall forming an obtuse angle, and wherein a height of said back wall defines a depth of said rectangular recess, said depth being greater than a thickness of said shutter. The following reference is relied on by the examiner: Fujita et al. (Fujita) 5,084,862 Jan. 28, 1992 Claims 1 to 6 stand rejected under 35 U.S.C. § 103. As 3Page: Previous 1 2 3 4 5 6 7 8 9 10 NextLast modified: November 3, 2007