Chicago Pneumatic Tool Co LLC
Chicago PnActive Patents
0
Total Holdings
43
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3003370A | Method of making rock bit cutter | Expired / Lapsed | 1960-01-19 | 1961-10-10 | 0 | Details |
| US2894677A | Rotary compressor control | Expired / Lapsed | 1956-10-16 | 1959-07-14 | 0 | Details |
| US2881884A | Impact clutch | Expired / Lapsed | 1955-01-12 | 1959-04-14 | 0 | Details |
| US2823040A | Tool retainer for pneumatic hammer | Expired / Lapsed | 1955-10-03 | 1958-02-11 | 0 | Details |
| US2688268A | Stoper drill with rotary impact attachment | Expired / Lapsed | 1953-03-31 | 1954-09-07 | 0 | Details |
| US2671949A | Method of making tool joints | Expired / Lapsed | 1948-11-23 | 1954-03-16 | 0 | Details |
| US2543979A | Impact wrench torque control | Expired / Lapsed | 1946-01-31 | 1951-03-06 | 0 | Details |
| US2539057A | Tool joint | Expired / Lapsed | 1944-09-02 | 1951-01-23 | 0 | Details |
| US2443894A | Distributing valve for rock drills | Expired / Lapsed | 1944-10-03 | 1948-06-22 | 0 | Details |
| US2423957A | Driver for clinch nuts and the like | Expired / Lapsed | 1942-09-14 | 1947-07-15 | 0 | Details |
| US2372942A | Compression riveter | Expired / Lapsed | 1944-07-11 | 1945-04-03 | 0 | Details |
| US2310625A | Compression riveter | Expired / Lapsed | 1940-01-30 | 1943-02-09 | 0 | Details |
| US2292146A | Hydraulic power transmission | Expired / Lapsed | 1940-12-26 | 1942-08-04 | 0 | Details |
| US2273626A | Two-speed sander | Expired / Lapsed | 1940-07-11 | 1942-02-17 | 0 | Details |
| US2261204A | Governor for impact wrenches | Expired / Lapsed | 1940-09-28 | 1941-11-04 | 0 | Details |
| US2246910A | Overbalanced governor | Expired / Lapsed | 1940-07-30 | 1941-06-24 | 0 | Details |
| US2246932A | Combination single and two stage vacuum pump | Expired / Lapsed | 1939-09-21 | 1941-06-24 | 0 | Details |
| US2246923A | Brake for hoists | Expired / Lapsed | 1938-07-26 | 1941-06-24 | 0 | Details |
| US2241184A | Single action pneumatic riveter | Expired / Lapsed | 1939-10-19 | 1941-05-06 | 0 | Details |
| US2212919A | Impact wrench | Expired / Lapsed | 1936-08-06 | 1940-08-27 | 0 | Details |
| US2101159A | Pneumatic hammer | Expired / Lapsed | 1935-09-11 | 1937-12-07 | 0 | Details |
| US2077733A | Reversible rotary motor | Expired / Lapsed | 1935-08-13 | 1937-04-20 | 0 | Details |
| US2000542A | Fluid pressure control apparatus | Expired / Lapsed | 1931-05-19 | 1935-05-07 | 0 | Details |
| US1996460A | Ventilated induction motor | Expired / Lapsed | 1933-03-31 | 1935-04-02 | 0 | Details |
| US1942825A | Control apparatus for power machines | Expired / Lapsed | 1930-09-03 | 1934-01-09 | 0 | Details |
| US1942570A | Method and apparatus for removing liquids and gases from ma… | Expired / Lapsed | 1930-08-08 | 1934-01-09 | 0 | Details |
| US1845933A | Lubrication of tools | Expired / Lapsed | 1925-02-04 | 1932-02-16 | 0 | Details |
| US1796487A | Coil-spring retainer | Expired / Lapsed | 1928-03-01 | 1931-03-17 | 0 | Details |
| US1794825A | Spring balancing device | Expired / Lapsed | 1925-12-17 | 1931-03-03 | 0 | Details |
| US1779116A | Condensing process and apparatus | Expired / Lapsed | 1928-05-19 | 1930-10-21 | 0 | Details |
| US1769034A | Fluid-pressure motor | Expired / Lapsed | 1927-01-17 | 1930-07-01 | 0 | Details |
| US1758074A | Heat-transforming apparatus | Expired / Lapsed | 1927-03-10 | 1930-05-13 | 0 | Details |
| US1682848A | Fluid-pressure-control device | Expired / Lapsed | 1926-09-02 | 1928-09-04 | 0 | Details |
| US1652374A | Pneumatic hammer | Expired / Lapsed | 1922-05-17 | 1927-12-13 | 0 | Details |
| US1645798A | Apparatus for unloading compressors | Expired / Lapsed | 1923-09-01 | 1927-10-18 | 0 | Details |
| US1617969A | Fluid-pressure hammer | Expired / Lapsed | 1922-05-01 | 1927-02-15 | 0 | Details |
| US1615890A | Pneumatic hammer | Expired / Lapsed | 1922-06-05 | 1927-02-01 | 0 | Details |
| US1584032A | Automatic low-pressure control apparatus for compressors | Expired / Lapsed | 1924-06-02 | 1926-05-11 | 0 | Details |
| US1567554A | Fluid-pressure hammer | Expired / Lapsed | 1920-08-25 | 1925-12-29 | 0 | Details |
| US1523774A | Regulating means | Expired / Lapsed | 1922-05-15 | 1925-01-20 | 0 | Details |
| US1116139A | Drilling-machine. | Expired / Lapsed | 1914-02-02 | 1914-11-03 | 0 | Details |
| US866922A | Engine. | Expired / Lapsed | 1907-04-08 | 1907-09-24 | 0 | Details |
| US798286A | Hoist-brake. | Expired / Lapsed | 1904-10-10 | 1905-08-29 | 0 | Details |