Appeal No. 1999-0687
Application No. 08/560,315
comprising the steps of:
applying the pressure-sensitive adhesive portion
of a section of a conformable tape to the
entirety of a compound surface of an ophthalmic
lens blank, wherein the tape comprises a polymer
backing having a first and a second major
surfaces; and a pressure-sensitive adhesive on
the second major surface of the polymer backing,
wherein the tape is wound into a roll without a
liner and exhibits a maximum unwind force of
less than 165 g/cm width;
conforming the tape to the surface so that the
tape is essentially free from wrinkles, air
bubbles and other discontinuities in the bond
between the tape and the lens blank; and
applying a lens block to at least a portion of
the polymer backing layer of the tape.
The examiner relies upon the following references as
evidence of obviousness:
Ohno et al. (Ohno) 4,636,427 Jan. 13, 1987
Sipinen et al. (Sipinen) 4,769,283 Sep. 06,
1988
Ohlin, Jr. (Ohlin) 5,343,657 Sep. 06, 1994
Appellants' claimed invention is directed to a method of
adhering a lens block, such as a metal coating, to the surface
of an ophthalmic lens blank. The method entails employing a
tape comprising a polymer backing and a pressure-sensitive
adhesive on
the polymer backing. The tape is defined as a roll of tape
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