Appeal No. 96-3032
Application No. 08/321,392
that magnet material attached to the rear surface of a display
article (either a sheet 11 or an irregularly shaped display
article 16) may advantageously be employed in order to hold
such articles on a ferrous surface such as a refrigerator door
or metal-backed chalkboard (see column 2, lines 44, 45). In
applying the test for obviousness set forth in footnote 4, we
are of the opinion that one of ordinary skill in this art
would have found it obvious to substitute in Murray for the
pin-type fastening 15 a magnetic fastening means (either 13 or
17) as taught by Taylor in order to achieve the advantage of
being able to attach Murray's holder to a ferrous surface.
As to the appellants' contention that there is no
teaching in Murray of making the holder of a relatively thick,
rigid material, we note artisans must be presumed to know
something about the art apart from what the references
disclose (see In re Jacoby, 309 F.2d 513, 516, 135 USPQ 317,
319 (CCPA 1962)) and the conclusion of obviousness may be made
from "common knowledge and common sense" of the person of
ordinary skill in the art (see In re Bozek, 416 F.2d 1385,
1390, 163 USPQ 545, 549 (CCPA 1969)). Moreover, skill is
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