Lake Center Industries

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4884792 ClampExpiredAug 11, 88Dec 05, 89[B25B]
4716264 Vacuum switchExpiredMar 11, 87Dec 29, 87[H01H]
4638640 Ice thickness controller for an ice making machineExpiredOct 25, 85Jan 27, 87[F25C]
4398231 Solid-state electronic brush speed sensing controlExpiredMar 03, 82Aug 09, 83[H02H]
4347468 Electronic variable speed automotive blower control systemExpiredApr 28, 80Aug 31, 82[H02P]
4328522 Brush speed sensing control for vacuum cleanerExpiredMar 31, 80May 04, 82[H02H]
4311946 Actuator with electric feedback signalExpiredMar 21, 79Jan 19, 82[G05B]
4270783 Door lock actuatorExpiredJan 24, 79Jun 02, 81[E05C]

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