Dataproducts, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4829318 Head tending system for purging and cleaning an ink jet print headExpiredSep 30, 87May 09, 89[G01D]
4823146 Cartridge and method of using a cartridge for phase change ink in an ink jet apparatusExpiredMar 31, 88Apr 18, 89[G01D]
4674897 Actuator for dot matrix printheadExpiredDec 09, 85Jun 23, 87[B41J]
4634302 Actuator for dot matrix printheadExpiredDec 09, 85Jan 06, 87[B41J]
4634303 Actuator for dot matrix printheadExpiredDec 09, 85Jan 06, 87[B41J]
4585361 Actuator for dot matrix printheadExpiredAug 26, 85Apr 29, 86[B41J]

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