Appeal No. 1999-2092 Page 4
Application No. 08/798,718
See Verdegaal Bros. Inc. v. Union Oil Co., 814 F.2d 628, 633,
2 USPQ2d 1051, 1054 (Fed. Cir.), cert. denied, 484 U.S. 827
(1987). A prior art reference anticipates the subject of a
claim when the reference discloses every feature of the
claimed invention, either explicitly or inherently (see Hazani
v. Int'l Trade Comm'n, 126 F.3d 1473, 1477, 44 USPQ2d 1358,
1361 (Fed. Cir. 1997) and RCA Corp. v. Applied Digital Data
Systems, Inc., 730 F.2d 1440, 1444, 221 USPQ 385, 388 (Fed.
Cir. 1984)); however, the law of anticipation does not require
that the reference teach what the appellants are claiming, but
only that the claims on appeal "read on" something disclosed
in the reference (see Kalman v. Kimberly-Clark Corp., 713 F.2d
760, 772, 218 USPQ 781, 789 (Fed. Cir. 1983), cert. denied,
465 U.S. 1026 (1984)).
Salvadori discloses a fluid drainage bag. As shown in
Figures 1, 2 and 4-6, the fluid drainage bag 10 includes a
body 12 preferably formed of two overlapping sheets 13 and 15
of polyvinyl chloride plastic. An internal fluid chamber 14
is formed within the bag body 12 by suitable means, such as
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