American Steel Foundries
American SActive Patents
0
Total Holdings
24
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2927662A | Manual and fluid pressure railway brake | Expired / Lapsed | 1956-01-09 | 1960-03-08 | 0 | Details |
| US2861520A | Differential piston pump | Expired / Lapsed | 1954-07-19 | 1958-11-25 | 0 | Details |
| US2847741A | Method of making washed shell mold | Expired / Lapsed | 1954-11-29 | 1958-08-19 | 2 | Details |
| US2840191A | Clasp brake | Expired / Lapsed | 1955-10-04 | 1958-06-24 | 0 | Details |
| US2838963A | Programming control mechanism | Expired / Lapsed | 1957-02-28 | 1958-06-17 | 0 | Details |
| US2690768A | Pressure responsive device | Expired / Lapsed | 1950-12-21 | 1954-10-05 | 0 | Details |
| US2629030A | Accelerometer | Expired / Lapsed | 1949-07-22 | 1953-02-17 | 0 | Details |
| US2627944A | Brake arrangement | Expired / Lapsed | 1948-04-30 | 1953-02-10 | 0 | Details |
| US2599022A | Fabricated press | Expired / Lapsed | 1948-03-18 | 1952-06-03 | 0 | Details |
| US2555115A | Hydraulic decompression circuit with automatic reverse | Expired / Lapsed | 1946-06-14 | 1951-05-29 | 0 | Details |
| US2539361A | Hydraulic circuit for operating hydraulic motors | Expired / Lapsed | 1947-04-05 | 1951-01-23 | 0 | Details |
| US2520660A | Pressure switch | Expired / Lapsed | 1947-06-27 | 1950-08-29 | 0 | Details |
| US2516696A | Brake head balancing device | Expired / Lapsed | 1948-05-04 | 1950-07-25 | 0 | Details |
| US2454514A | Coupler attachment | Expired / Lapsed | 1946-12-06 | 1948-11-23 | 0 | Details |
| US2423120A | Valve arrangement | Expired / Lapsed | 1943-12-30 | 1947-07-01 | 0 | Details |
| US2377212A | Accelerometer | Expired / Lapsed | 1943-12-30 | 1945-05-29 | 0 | Details |
| US2280754A | Brake arrangement | Expired / Lapsed | 1940-07-26 | 1942-04-21 | 0 | Details |
| US2276228A | Snubber | Expired / Lapsed | 1940-02-17 | 1942-03-10 | 0 | Details |
| US2241353A | Draft connection | Expired / Lapsed | 1939-03-23 | 1941-05-06 | 0 | Details |
| US2191138A | Clasp brake | Expired / Lapsed | 1937-12-16 | 1940-02-20 | 0 | Details |
| US2183850A | Brake arrangement | Expired / Lapsed | 1938-08-06 | 1939-12-19 | 0 | Details |
| US2030151A | Antifriction wheel and axle assembly | Expired / Lapsed | 1929-01-28 | 1936-02-11 | 0 | Details |
| US1787563A | Brake mechanism | Expired / Lapsed | 1928-09-26 | 1931-01-06 | 0 | Details |
| US1143723A | Side frame and journal-box. | Expired / Lapsed | 1914-11-28 | 1915-06-22 | 0 | Details |