Corban International, Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4685055 Method and system for controlling use of protected softwareExpiredJul 01, 85Aug 04, 87[G06F]
4654792 Data processing system including data input authorizationExpiredApr 30, 84Mar 31, 87[G06F]
4612168 Process for refining brass and aluminum scrapsExpiredMay 31, 85Sep 16, 86[C22C]
4446519 Method and apparatus for providing security for computer softwareExpiredMay 26, 81May 01, 84[G06F]

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