Jodon Engineering Associates, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6056173 Holding deviceExpiredMar 02, 98May 02, 00[A45F]
5577690 Microwave measurement of train wheel wearExpiredSep 15, 94Nov 26, 96[B61L]
4689553 Method and system for monitoring position of a fluid actuator employing microwave resonant cavity principlesExpiredApr 12, 85Aug 25, 87[G01R, G01F]
4633707 Method and apparatus for measuring engine compression ratio, clearance volume and related cylinder parametersExpiredAug 31, 84Jan 06, 87[G01M]
4505152 Method and apparatus for measuring engine compression ratioExpiredSep 13, 82Mar 19, 85[G01M]
4467763 Ignition timing control for internal combustion enginesExpiredSep 13, 82Aug 28, 84[G01M, F02P]
4437338 Spark plug microwave adapterExpiredSep 11, 81Mar 20, 84[G01M]
4337648 Dual probe couplerExpiredNov 03, 80Jul 06, 82[G01M]
4331029 Method and apparatus for measurement of engine ignition timingExpiredJul 08, 80May 25, 82[G01M]

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