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MASTER SPECIALTIES Co

MASTER SPE

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Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US3320493A	Voltage sensor	Expired / Lapsed	1964-01-22	1967-05-16	2	Details
US3303396A	Delayed pull in time delay relay	Expired / Lapsed	1964-01-22	1967-02-07	2	Details
US3251049A	Master warning indicator system	Expired / Lapsed	1964-01-09	1966-05-10	0	Details
US3188623A	Free running multivibrator circuit energizing an indicator …	Expired / Lapsed	1960-02-08	1965-06-08	2	Details