Pioneer Ansafone Manufacturing Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4878217 Data outputting deviceExpiredFeb 01, 88Oct 31, 89[H04J]
D291435 Automatic telephone answering and recording machineExpiredJul 10, 85Aug 18, 87[]
D290606 Telephone setExpiredJul 08, 85Jun 30, 87[]
D290353 Combined telephone, automatic answering and recording machineExpiredAug 23, 85Jun 16, 87[]
4641116 Microwave filterExpiredNov 25, 85Feb 03, 87[H01P]
4599662 Mechanism for driving a tape recorderExpiredNov 01, 82Jul 08, 86[G11B]
4584602 Polling system and method using nondedicated telephone linesExpiredNov 07, 83Apr 22, 86[H04M, H04N]
4378578 Mode control device for tape recordersExpiredJan 13, 81Mar 29, 83[G11B]
4345114 Method and apparatus for recording and reproducing a message with an indication of a time occurrenceExpiredApr 28, 80Aug 17, 82[H04M]

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