United Gas Improvement Co
United GasActive Patents
0
Total Holdings
24
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2520124A | Rock wool mass | Expired / Lapsed | 1946-03-20 | 1950-08-29 | 0 | Details |
| US2416232A | Coated organic material and method of making the same | Expired / Lapsed | 1943-04-03 | 1947-02-18 | 0 | Details |
| US2400892A | Plasticized polystyrene-type resins | Expired / Lapsed | 1944-02-09 | 1946-05-28 | 0 | Details |
| US2395957A | Process for concentrating unsaturated hydrocarbon material | Expired / Lapsed | 1942-07-24 | 1946-03-05 | 0 | Details |
| US2393333A | Chemical process | Expired / Lapsed | 1944-11-21 | 1946-01-22 | 0 | Details |
| US2391004A | Process for refining butadiene contaminated with monovinyla… | Expired / Lapsed | 1942-07-24 | 1945-12-18 | 0 | Details |
| US2386778A | Fractionation control | Expired / Lapsed | 1941-02-20 | 1945-10-16 | 0 | Details |
| US2383772A | Production of valuable hydrocarbons | Expired / Lapsed | 1940-12-28 | 1945-08-28 | 0 | Details |
| US2379518A | Recovery of valuable hydrocarbons | Expired / Lapsed | 1939-10-26 | 1945-07-03 | 0 | Details |
| US2375256A | Process for controlling polymerization reactions | Expired / Lapsed | 1939-07-07 | 1945-05-08 | 0 | Details |
| US2353198A | Coated metal | Expired / Lapsed | 1940-09-12 | 1944-07-11 | 0 | Details |
| US2345013A | Process for conducting exothermic polymerization reactions | Expired / Lapsed | 1939-06-23 | 1944-03-28 | 0 | Details |
| US2338741A | Substituted styrene-polybutadiene copolymer | Expired / Lapsed | 1939-03-11 | 1944-01-11 | 0 | Details |
| US2317859A | Styrene-polypiperylene copolymer | Expired / Lapsed | 1939-02-17 | 1943-04-27 | 0 | Details |
| US2283236A | Sulphonated derivatives of polymerized methylstyrene | Expired / Lapsed | 1939-06-23 | 1942-05-19 | 0 | Details |
| US2251964A | Apparatus for filtering gas | Expired / Lapsed | 1938-02-14 | 1941-08-12 | 0 | Details |
| US2251297A | Synthetic resin and process for making the same | Expired / Lapsed | 1938-11-02 | 1941-08-05 | 0 | Details |
| US2048993A | Gas filter | Expired / Lapsed | 1934-11-16 | 1936-07-28 | 0 | Details |
| US1986357A | Insulated pipe joint | Expired / Lapsed | 1933-01-16 | 1935-01-01 | 0 | Details |
| US1983213A | Gas burner control | Expired / Lapsed | 1933-07-24 | 1934-12-04 | 0 | Details |
| US1964300A | Gas pilot burner control | Expired / Lapsed | 1933-04-24 | 1934-06-26 | 0 | Details |
| US1922003A | Apparatus for inflating and deflating gas main bags | Expired / Lapsed | 1931-06-12 | 1933-08-08 | 0 | Details |
| US1808709A | Apparatus for metering gaseous fluids | Expired / Lapsed | 1928-10-18 | 1931-06-02 | 0 | Details |
| US1171397A | Sign. | Expired / Lapsed | 1914-06-13 | 1916-02-08 | 0 | Details |