United States Gypsum Co
United StaActive Patents
0
Total Holdings
42
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4184887A | Plaster composition containing water-reducing agent | Expired / Lapsed | 1978-04-06 | 1980-01-22 | 15 | Details |
| US4169747A | Composition for accelerating the setting of calcined gypsum… | Expired / Lapsed | 1977-06-06 | 1979-10-02 | 13 | Details |
| US4059456A | Composition for accelerating the setting of calcined gypsum… | Expired / Lapsed | 1975-10-21 | 1977-11-22 | 12 | Details |
| US4016697A | Construction unit | Expired / Lapsed | 1975-01-27 | 1977-04-12 | 12 | Details |
| US3730468A | Furniture supporting system | Expired / Lapsed | 1971-12-20 | 1973-05-01 | 30 | Details |
| US3573947A | Accelerator for gypsum plaster | Expired / Lapsed | 1968-08-19 | 1971-04-06 | 0 | Details |
| US3476302A | Wallboard attachment and apparatus therefor | Expired / Lapsed | 1966-05-13 | 1969-11-04 | 0 | Details |
| US3281516A | Process for making facing for siding | Expired / Lapsed | 1963-06-18 | 1966-10-25 | 2 | Details |
| US3216167A | Prefabricated panel | Expired / Lapsed | 1961-05-22 | 1965-11-09 | 2 | Details |
| US2998337A | Reflective-fibrous type insulation | Expired / Lapsed | 1957-06-07 | 1961-08-29 | 2 | Details |
| US2639478A | Process of preparing patterns | Expired / Lapsed | 1949-12-16 | 1953-05-26 | 2 | Details |
| US2441927A | Mucilaginous composition | Expired / Lapsed | 1942-10-05 | 1948-05-18 | 0 | Details |
| US2432971A | Porous composition of matter and method of manufacture | Expired / Lapsed | 1945-03-31 | 1947-12-16 | 0 | Details |
| US2409951A | Insulating bat | Expired / Lapsed | 1942-05-07 | 1946-10-22 | 0 | Details |
| US2369000A | Wall construction | Expired / Lapsed | 1940-05-25 | 1945-02-06 | 0 | Details |
| US2324916A | Reinforced structural element | Expired / Lapsed | 1940-05-02 | 1943-07-20 | 0 | Details |
| US2292616A | Gypsum composition | Expired / Lapsed | 1940-01-18 | 1942-08-11 | 0 | Details |
| US2256000A | Brake shoe reinforcing and method of making the same | Expired / Lapsed | 1939-02-20 | 1941-09-16 | 0 | Details |
| US2255227A | Apparatus for producing mineral wool | Expired / Lapsed | 1938-11-10 | 1941-09-09 | 0 | Details |
| US2238017A | Method and apparatus for manufacturing wallboard | Expired / Lapsed | 1937-10-23 | 1941-04-08 | 0 | Details |
| US2238022A | Insulating material and structure | Expired / Lapsed | 1937-04-03 | 1941-04-08 | 0 | Details |
| US2225585A | Method of making textured fiberboard | Expired / Lapsed | 1937-04-12 | 1940-12-17 | 0 | Details |
| US2224810A | Air-cell pipe covering and method of forming the same | Expired / Lapsed | 1937-11-29 | 1940-12-10 | 0 | Details |
| US2215244A | Process of making pressed board products | Expired / Lapsed | 1935-07-03 | 1940-09-17 | 0 | Details |
| US2173815A | Heat insulating material and method of forming the same | Expired / Lapsed | 1937-05-19 | 1939-09-19 | 0 | Details |
| US2032071A | Cementitious paint and plastic composition | Expired / Lapsed | 1934-09-10 | 1936-02-25 | 0 | Details |
| US2021330A | Apparatus for measuring vibration | Expired / Lapsed | 1932-06-29 | 1935-11-19 | 0 | Details |
| US2017911A | Wall and ceiling construction | Expired / Lapsed | 1932-02-20 | 1935-10-22 | 0 | Details |
| US2014355A | Vibration isolating pipe connection | Expired / Lapsed | 1933-02-27 | 1935-09-10 | 0 | Details |
| US2000243A | Wall construction | Expired / Lapsed | 1932-06-20 | 1935-05-07 | 0 | Details |
| US1997607A | Acoustical ceiling | Expired / Lapsed | 1932-08-31 | 1935-04-16 | 0 | Details |
| US1998423A | Building construction for acoustical correction | Expired / Lapsed | 1932-06-27 | 1935-04-16 | 0 | Details |
| US1996032A | Sound absorbing composition | Expired / Lapsed | 1929-04-15 | 1935-03-26 | 0 | Details |
| US1993792A | Wall and ceiling construction | Expired / Lapsed | 1932-05-02 | 1935-03-12 | 0 | Details |
| US1981240A | Wall construction | Expired / Lapsed | 1932-08-17 | 1934-11-20 | 0 | Details |
| US1975052A | Thermal testing device | Expired / Lapsed | 1932-11-10 | 1934-09-25 | 0 | Details |
| US1961144A | Compartment shelving | Expired / Lapsed | 1933-10-14 | 1934-06-05 | 0 | Details |
| US1929470A | Foam cell | Expired / Lapsed | 1931-05-23 | 1933-10-10 | 0 | Details |
| US1914345A | Wall construction | Expired / Lapsed | 1932-07-07 | 1933-06-13 | 0 | Details |
| US1811250A | Sound-reducing construction | Expired / Lapsed | 1929-02-15 | 1931-06-23 | 0 | Details |
| US1724740A | Plaster-wall-board shipping package or holder | Expired / Lapsed | 1924-01-14 | 1929-08-13 | 0 | Details |
| US1034746A | Plaster-board. | Expired / Lapsed | 1911-12-16 | 1912-08-06 | 0 | Details |