Transit Research Corp
Transit ReActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2593094A | Heating and ventilating system | Expired / Lapsed | 1945-05-03 | 1952-04-15 | 0 | Details |
| US2351096A | Heating and ventilating system for car bodies | Expired / Lapsed | 1941-07-16 | 1944-06-13 | 0 | Details |
| US2318798A | Fluid pressure actuated brake system | Expired / Lapsed | 1940-04-02 | 1943-05-11 | 0 | Details |
| US2178644A | Body construction and heating and ventilating system | Expired / Lapsed | 1936-06-11 | 1939-11-07 | 0 | Details |
| US2130131A | Step construction | Expired / Lapsed | 1937-03-27 | 1938-09-13 | 0 | Details |
| US2069270A | Elastic spring and method of making same | Expired / Lapsed | 1935-05-23 | 1937-02-02 | 0 | Details |