Marvel Engineering Co
Marvel EngActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| 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 |
| US3384242A | Apparatus for removing entrapped air in filters | Expired / Lapsed | 1965-10-11 | 1968-05-21 | 0 | 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 |
| US2730241A | Filters | Expired / Lapsed | 1953-02-09 | 1956-01-10 | 0 | Details |