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Marvel Engineering Co

Marvel Eng

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US4223302A	Conditions monitoring device	Expired / Lapsed	1979-03-05	1980-09-16	2	Details
US3618776A	Filter assembly bypass kit	Expired / Lapsed	1969-10-03	1971-11-09	5	Details
US3056379A	Automatic filter signal assemblies	Expired / Lapsed	1960-08-15	1962-10-02	0	Details
US2801751A	High pressure valved filters	Expired / Lapsed	1955-03-02	1957-08-06	0	Details