Purolator Products Inc
PurolatorActive Patents
0
Total Holdings
12
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3012631A | Filter breather | Expired / Lapsed | 1958-09-29 | 1961-12-12 | 0 | Details |
| US2871976A | Air cleaner-intake silencer unit and filter element therefor | Expired / Lapsed | 1956-03-30 | 1959-02-03 | 0 | Details |
| US2834419A | Hood and air cleaner mounting assembly | Expired / Lapsed | 1954-11-15 | 1958-05-13 | 0 | Details |
| US2816665A | Wound filter element | Expired / Lapsed | 1954-08-16 | 1957-12-17 | 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 |
| US2663660A | Method of assembling filter elements | Expired / Lapsed | 1951-05-25 | 1953-12-22 | 2 | Details |
| US2654124A | Method and apparatus for manufacture of plastic edge type f… | Expired / Lapsed | 1951-07-20 | 1953-10-06 | 0 | Details |
| US2642187A | Filter unit construction | Expired / Lapsed | 1950-01-11 | 1953-06-16 | 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 |