Appeal No. 1998-2921 Page 2
Application No. 08/511,451
BACKGROUND
The appellants' invention relates to a method of
manufacturing at least two different types of sealing rings
for sealing a space between an inner surface of a socket
provided with an annular groove and an outer surface of a
spigot end introduced into the socket in a pipe joint
(specification, p. 1). A copy of the claims under appeal is
set forth in the appendix to the appellants' brief.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Cyriax 4,410,479 Oct. 18,
1983
Valls 4,693,483 Sep. 15,
1987
Vassallo et al. 4,826,028 May 2,
1989
(Vassallo)
Wright GB 2,092,241 Aug. 11,
1982
Claims 19 to 26 stand rejected under 35 U.S.C. § 103 as
being unpatentable over Cyriax in view of Vassallo or Valls,
and further in view of Wright.
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