Appeal No. 98-0383 Page 10
Application No. 08/549,869
to use the type of pressure sensitive adhesive which will bond
only to itself (column 9, lines 30-33), the definition of
“pressure sensitive adhesive” which appears early on in this
reference in the description of the embodiment shown in Figures
1 and 2 is “any substance, inorganic or organic, natural or
synthetic, that is capable of bonding to other surfaces or to
other surfaces coated with a like pressure sensitive adhesive”
(column 3, lines 17-19, emphasis added). Therefore, while a
limitation to this effect is not recited in the appellant’s
claim 6, it is clear that Weder ‘638 would have suggested to
the artisan that both types of pressure sensitive adhesive can
be used in wrapping packages.
Weder ‘638 discloses all of the subject matter positively
recited in claim 6 except for the detachable attached backing
strip over the pressure sensitive adhesive, which is removed
prior to wrapping the package. Culberg provides evidence that
this feature was known in the art at the time of the
appellant’s invention. As shown in Figures 1-5 and explained
in the specification, backing sheets 17, 19 and 24 cover
pressure sensitive adhesive strips 15 until the point at which
the surfaces of the wrapping sheet are to be adhered, at which
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Last modified: November 3, 2007