Central Scientific Co
Central ScActive Patents
0
Total Holdings
13
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2966175A | Motor-driven syringe | Expired / Lapsed | 1958-07-14 | 1960-12-27 | 0 | Details |
| US2269790A | Clamp | Expired / Lapsed | 1938-08-31 | 1942-01-13 | 0 | Details |
| US2051320A | Apparatus for using photoelectric cells quantitatively | Expired / Lapsed | 1934-07-02 | 1936-08-18 | 0 | Details |
| US2012112A | Thermometer | Expired / Lapsed | 1932-05-16 | 1935-08-20 | 0 | Details |
| US1968039A | Educational apparatus | Expired / Lapsed | 1933-02-06 | 1934-07-31 | 0 | Details |
| US1949710A | Valve for vacuum pumps | Expired / Lapsed | 1931-01-17 | 1934-03-06 | 0 | Details |
| US1908258A | Vibrating string apparatus | Expired / Lapsed | 1929-09-27 | 1933-05-09 | 0 | Details |
| US1890574A | Vacuum pump | Expired / Lapsed | 1930-05-12 | 1932-12-13 | 0 | Details |
| US1879136A | Blower and vacuum pump | Expired / Lapsed | 1929-12-16 | 1932-09-27 | 0 | Details |
| US1766355A | Educational apparatus | Expired / Lapsed | 1928-05-31 | 1930-06-24 | 0 | Details |
| US1504483A | Rheostat | Expired / Lapsed | 1922-05-31 | 1924-08-12 | 0 | Details |
| US1208756A | Electric heating unit. | Expired / Lapsed | 1914-09-19 | 1916-12-19 | 0 | Details |
| US1184430A | Temperature-control mechanism. | Expired / Lapsed | 1914-06-18 | 1916-05-23 | 0 | Details |