Champion Paper and Fibre Co
Champion PActive Patents
0
Total Holdings
12
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2786978A | Apparatus for measuring surface speed | Expired / Lapsed | 1953-06-16 | 1957-03-26 | 0 | Details |
| US2728223A | Web tension measuring apparatus | Expired / Lapsed | 1952-05-24 | 1955-12-27 | 0 | Details |
| US2569368A | Joining metal parts | Expired / Lapsed | 1946-01-08 | 1951-09-25 | 2 | Details |
| US2420403A | Electrodeposition of iron | Expired / Lapsed | 1943-02-25 | 1947-05-13 | 0 | Details |
| US2388339A | Method of coating paper | Expired / Lapsed | 1942-04-21 | 1945-11-06 | 0 | Details |
| US2366484A | Apparatus for applying moisture to paper webs | Expired / Lapsed | 1941-07-10 | 1945-01-02 | 0 | Details |
| US2348162A | Web spreader | Expired / Lapsed | 1941-08-25 | 1944-05-02 | 0 | Details |
| US2312310A | Papermaking | Expired / Lapsed | 1939-03-01 | 1943-03-02 | 0 | Details |
| US2305404A | Method of making clay fillers | Expired / Lapsed | 1939-09-08 | 1942-12-15 | 0 | Details |
| US2246501A | Glossmeter | Expired / Lapsed | 1939-03-01 | 1941-06-24 | 0 | Details |
| US2192123A | Determination of hydrogen-ion concentration | Expired / Lapsed | 1936-09-09 | 1940-02-27 | 0 | Details |
| US2158080A | Apparatus for and method of screening | Expired / Lapsed | 1936-01-30 | 1939-05-16 | 0 | Details |