USRE37186EExpiredUtility
Unidirectional panel
Est. expiryJul 28, 2004(expired)· nominal 20-yr term from priority
Inventors:George Roland Hill
G09F 7/00B32B 17/10247E06B 9/24B44C 3/005B44C 5/0446G09F 13/00B44C 3/02B44F 1/10B44F 1/06B44C 1/105Y10T428/24769B44C 5/04Y10T428/24603Y10T428/24306Y10T428/24909B44C 1/17Y10T428/24736Y10T428/24314Y10T428/24298Y10T428/24289Y10T428/24281Y10T428/24331Y10T428/24322Y10T428/24876Y10T428/24058
94
PatentIndex Score
112
Cited by
53
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0
Claims
Abstract
A panel which comprises a substrate of transparent or translucent material having applied to one or both sides a design superimposed on, or forming part of, an opaque pattern so that the design on one side of the panel cannot be seen from the other side. This is a Reissue of a Patent which was the subject of a Reexamination Certificate No. B1 4,673,609, dated Jul. 25, 1995, Request No. 90/003,201, Sep. 21, 1993.
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