Purolator Products Inc
PurolatorActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2871976A | Air cleaner-intake silencer unit and filter element therefor | Expired / Lapsed | 1956-03-30 | 1959-02-03 | 0 | Details |
| US2796989A | Filter and fluid treating element | Expired / Lapsed | 1954-01-29 | 1957-06-25 | 0 | Details |
| US2729339A | Automatic discriminatory clogging detector for oil filters | Expired / Lapsed | 1953-08-28 | 1956-01-03 | 0 | Details |
| US2533266A | Filter | Expired / Lapsed | 1946-03-13 | 1950-12-12 | 0 | Details |
| US2311320A | Filter | Expired / Lapsed | 1939-11-28 | 1943-02-16 | 0 | Details |
| US2304618A | Filter | Expired / Lapsed | 1940-12-26 | 1942-12-08 | 0 | Details |