Black Sivalls and Bryson Inc
Black SivaActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4158422A | Safety pressure relief apparatus | Expired / Lapsed | 1977-09-12 | 1979-06-19 | 10 | Details |
| US3533739A | Combustion of sulfur-bearing carbonaceous fuel | Expired / Lapsed | 1968-04-01 | 1970-10-13 | 0 | Details |
| US3294277A | Safety device for pressure vessels | Expired / Lapsed | 1964-10-26 | 1966-12-27 | 1 | Details |
| US2884860A | Apparatus for circulating a liquid in a fluid pressure syst… | Expired / Lapsed | 1956-11-23 | 1959-05-05 | 0 | Details |
| US2661121A | Safety pressure device | Expired / Lapsed | 1950-08-23 | 1953-12-01 | 0 | Details |
| US2119288A | Apparatus for testing gas | Expired / Lapsed | 1936-06-08 | 1938-05-31 | 0 | Details |