KOALA ACQUISITIONS INC., A CA CORP.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D285203 Touch table controller for computersExpiredJan 10, 84Aug 19, 86[]
4587378 Two-layer touch tabletExpiredJul 30, 84May 06, 86[G08C]
4581483 Interface circuitry for interconnecting touch tablet with a computer interfaceExpiredMar 30, 84Apr 08, 86[G08C]
4570149 Simplified touch tablet data deviceExpiredMar 15, 83Feb 11, 86[G08C]
4564079 Digitizer padExpiredJul 30, 84Jan 14, 86[G08C]
4484026 Touch tablet data deviceExpiredMar 15, 83Nov 20, 84[G08C]
4433217 Hand controller multiple circuit switchExpiredAug 16, 82Feb 21, 84[A63F, H01H]

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