Black Clawson Co
Black ClawActive Patents
0
Total Holdings
9
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4622132A | Liquid cyclone or centrifugal cleaner | Expired / Lapsed | 1985-04-19 | 1986-11-11 | 11 | Details |
| US3890509A | Automatic edger set works method and apparatus | Expired / Lapsed | 1974-02-07 | 1975-06-17 | 17 | Details |
| US3760667A | Veneer defect detector and clipper control | Expired / Lapsed | 1972-08-03 | 1973-09-25 | 7 | Details |
| US3720380A | Recovery of salvageable components from solid waste material | Expired / Lapsed | 1970-12-21 | 1973-03-13 | 8 | Details |
| US3698818A | Log diameter scanner including a plurality of photodetectors | Expired / Lapsed | 1971-04-27 | 1972-10-17 | 9 | Details |
| US2645347A | Vortex separator for pulp | Expired / Lapsed | 1950-05-20 | 1953-07-14 | 0 | Details |
| US2627788A | Paper machinery | Expired / Lapsed | 1948-02-12 | 1953-02-10 | 0 | Details |
| US2622795A | Centrifugal separator | Expired / Lapsed | 1948-10-30 | 1952-12-23 | 0 | Details |
| US2164445A | Paper machinery | Expired / Lapsed | 1935-12-05 | 1939-07-04 | 0 | Details |