Farrel Birmingham Co Inc
Farrel BirActive Patents
0
Total Holdings
9
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3088250A | Automated roll grinder | Expired / Lapsed | 1961-10-18 | 1963-05-07 | 2 | Details |
| US2912556A | Electrically heated roll for calenders or the like | Expired / Lapsed | 1958-05-02 | 1959-11-10 | 0 | Details |
| US2736994A | Method of and apparatus for grinding gears | Expired / Lapsed | 1954-03-15 | 1956-03-06 | 0 | Details |
| US2681621A | Reversible gear pump | Expired / Lapsed | 1951-11-07 | 1954-06-22 | 0 | Details |
| US2662243A | Blending and/or warming extrusion device for plastics or th… | Expired / Lapsed | 1950-07-07 | 1953-12-15 | 0 | Details |
| US2514841A | Method of and means for treating rubber | Expired / Lapsed | 1947-01-17 | 1950-07-11 | 2 | Details |
| US2380113A | Flexible coupling | Expired / Lapsed | 1943-04-12 | 1945-07-10 | 0 | Details |
| US1978209A | Coupling for rotatable elements | Expired / Lapsed | 1933-10-27 | 1934-10-23 | 0 | Details |
| US1849291A | Machine for plasticating materials | Expired / Lapsed | 1929-04-23 | 1932-03-15 | 0 | Details |