Interference No. 104,403
first surface has a plurality of parallel lenticulated conic lenses. The
second surface which is disposed opposite to the first surface includes
a plurality of spaced-apart raised parallel portions which have a
composite image positioned thereupon with indented transparent
concave lens portions therebetween. The concave lens portions
permit the passage of light so that an image positioned beneath the
transparent sheet at a preselected distance can be viewed through the
transparent concave lens portions of the second surface.
The subject matter of the count may be used in packaging.
When the optical lens system of the count is used in packaging, a
viewer can view the image (such as advertisement or labeling) on the
raised parallel portions of the second surface when the viewer views
the package at one angle and views an object (such as the contents of
the package) beneath the sheet at a second angle.
Rosenthal’s priority case
Reduction to practice
In order to prove actual reduction to practice, one must establish
that a physical embodiment of the invention existed and that the
physical embodiment included every limitation of the count and that it
worked for its intended purpose. Correge v. Murphy, 705 F.2d 1326,
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