Appeal No. 1997-0153
Application No. 08/375,681
BACKGROUND
The appellants’ invention is directed to a filter
cartridge for a respirator. Particular emphasis is placed on
the tight fit (page 3, lines 19-22) between the filter
cartridge and the respirator housing such that fluid does not
flow between the filter cartridge and respirator housing.
Independent claim 1 is representative of the subject matter on
appeal and a copy thereof 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:2
Braun et al. (Braun) 4,790,306 Dec. 13, 1988
Schlobohm 5,148,803 Sep. 22, 1992
Claims 1-4 and 6-16 stand rejected under 35 U.S.C. § 103
as being unpatentable over Schlobohm in view of Braun.
2 The examiner has initialed the IDS Form PTO-1449 filed 15 July 1996
indicating consideration of the French and German references. However, there
is no indication of the examiner’s consideration of U.S. Patents No. 3,072,119
and 2,804,936 cited on the Form PTO-1449 filed 17 June 1996.
2
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