Appeal No. 1996-1699
Application No. 08/077,681
The appellants’ invention relates to a method of removing
the binder phase from the surface of a hard material body
containing hard constituents in a binder phase (claims 1
through 4) and the product produced by the method (claim 5).
Claims 1 and 5 are illustrative of the subject matter on
appeal and are reproduced below:
1. A method of removing the binder phase from the surface
of a hard material body containing hard constituents in a
binder phase based on cobalt and/or nickel, said body
having a binder phase enriched surface zone comprising
blasting the surface zone using particles having a size
of 400 to 1500 mesh.
5. The product of the method of claim 1.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Reed 3,382,159 May 07,
1968
Oliver 4,272,612 Jun. 09, 1981
Additionally, the examiner relies on the admitted prior
art (APA) described on pages 1 and 2 of the appellants’
specification.
Claims 1 through 5 stand rejected under 35 U.S.C. § 103
as being unpatentable over the APA in view of Oliver and Reed.
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007