Schrader Automotive, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5190072 Relief valve assembly for recyclable pressure vesselsExpiredMay 28, 92Mar 02, 93[F16K]
4966034 On-board tire pressure indicating system performing temperature-compensated pressure measurement, and pressure measurement circuitry thereofExpiredMar 29, 89Oct 30, 90[G01L, B60C]
4951501 Tire valve having dual electric conducting pathsExpiredOct 16, 89Aug 28, 90[B60C]
4557308 Tire valve and low pressure indicatorExpiredJun 18, 84Dec 10, 85[B60C]
4539928 Tire equalizer and indicatorExpiredAug 01, 83Sep 10, 85[B60C]
4506695 Plastic tire valveExpiredApr 04, 83Mar 26, 85[F16K]
4250759 Digital readout gaugeExpiredNov 21, 79Feb 17, 81[G01L]

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