Champion Paper and Fibre Co
Champion PActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2946307A | Apparatus for coating paper | Expired / Lapsed | 1955-12-23 | 1960-07-26 | 0 | Details |
| US2388339A | Method of coating paper | Expired / Lapsed | 1942-04-21 | 1945-11-06 | 0 | Details |
| US2246501A | Glossmeter | Expired / Lapsed | 1939-03-01 | 1941-06-24 | 0 | Details |
| US2214565A | Coated paper and method of making the same | Expired / Lapsed | 1938-01-26 | 1940-09-10 | 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 |