PROJECTAVISION, INC.

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Patent Activity in the Last 10 Years

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Top Patents (by citation)

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D379978 Portable rear screen video projection systemSep 03, 93Jun 17, 97[1403]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5900982 High efficiency light valve projection systemExpiredNov 03, 97May 04, 99[G02B]
5602679 High efficiency light valve projection systemExpiredFeb 06, 95Feb 11, 97[H04N, G09G, G02B]
5580146 Rear screen video display systemExpiredAug 11, 95Dec 03, 96[G03B]
D373354 Rear screen video display systemExpiredApr 10, 95Sep 03, 96[]
5491585 Portable rear screen television cabinetExpiredApr 07, 94Feb 13, 96[G03B]
D357474 Rear screen video projection systemsExpiredSep 03, 93Apr 18, 95[]
D357475 Rear screen video projection systemExpiredSep 03, 93Apr 18, 95[]
5300942 High efficiency light valve projection system with decreased perception of spaces between pixels and/or hinesExpiredFeb 21, 91Apr 05, 94[G09G]
5012274 Active matrix LCD image projection systemExpiredDec 23, 88Apr 30, 91[G09G]

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