Appeal No. 1998-2327
Application No. 08/467,619
said second chamber containing a second liquid
component for said liquid bone cement, said second liquid
component comprising a liquid alkyl methacrylate, an
activator, and a stabilizer for preventing spontaneous
polymerization of the liquid alkyl methacrylate in said
second liquid component, the liquid alkyl methacrylate
being present in said second liquid component in an
amount which is at least sufficient to provide the second
liquid component as a liquid mixture, said second chamber
being at least substantially free of air.
The references relied upon by the examiner as evidence of
obviousness are:
Yamauchi et al. (Yamauchi) 4,182,035 Jan. 8,
1980
Butler et al. (Butler) 4,383,826 May 17,
1983
Colin et al. (Colin) 5,033,650 Jul. 23,
1991
Chan 5,100,241 Mar. 31,
1992
All of the claims on appeal are rejected under 35 U.S.C.
§ 103 as being unpatentable over Colin in view of Butler,
Yamauchi and Chan.
We refer to the brief and to the answer for a complete
discussion of the respective viewpoints advocated by the
appellant and by the examiner concerning the above-noted
rejection.
OPINION
We have carefully considered the argument and evidence
4
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007