Sonin, Inc.

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5230159 Tape rule calculatorExpiredAug 11, 92Jul 27, 93[G01B]
D335091 Combination calculator and tape ruleExpiredMar 09, 90Apr 27, 93[]
D318020 Combined measuring tape and calculatorExpiredJun 08, 89Jul 09, 91[]
5023996 Multiple blade handsawExpiredMar 09, 90Jun 18, 91[B25F]
D313360 Electronic distance measuring instrumentExpiredJul 26, 88Jan 01, 91[]
D313361 Electronic distance measuring instrumentExpiredJul 26, 88Jan 01, 91[]
4910717 Apparatus for measuring distancesExpiredAug 02, 88Mar 20, 90[G01S]
4821889 Display stand for advertising distance measuring devicesExpiredApr 26, 88Apr 18, 89[A47F]
4488250 Hand-held calculator for performing calculations in feet, inches and fractionsExpiredJul 02, 82Dec 11, 84[G06F]

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