Amper, S.A.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5347924 Device for printing endorsements on documentsExpiredMay 06, 91Sep 20, 94[B41L]
D327877 Terminal for authorizations and electronic transfers of fundsExpiredJun 02, 89Jul 14, 92[]
D327472 Transaction and authorization terminalExpiredJun 02, 89Jun 30, 92[]
D327056 Document sorterExpiredJun 02, 89Jun 16, 92[]
D321362 Document feederExpiredJun 02, 89Nov 05, 91[]
5012734 Device for printing endorsements of documentsExpiredMay 04, 89May 07, 91[B41L]
4986523 Document feeder for printing equipmentExpiredMay 03, 89Jan 22, 91[B65H]
4927031 Document sorter for reader/printer equipmentExpiredMay 10, 89May 22, 90[B07C, B65H]
D298429 Telephone stand with speakerphoneExpiredJun 11, 86Nov 08, 88[]
D295624 Telephone handsetExpiredJun 11, 86May 10, 88[]
D262624 Molded base plate for a desk telephone setExpiredJan 30, 79Jan 12, 82[D140]
4310724 Current detector circuitExpiredNov 27, 79Jan 12, 82[H04M]
4251697 Keypad for telephonesExpiredJan 08, 79Feb 17, 81[H01H]

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