Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2051320A | Apparatus for using photoelectric cells quantitatively | Central Scientific Co | Expired / Lapsed | 1934-07-02 | 1936-08-18 | 1954-07-02 | 0.0 yrs | 0 | |
| US2012112A | Thermometer | Central Scientific Co | Expired / Lapsed | 1932-05-16 | 1935-08-20 | 1952-05-16 | 0.0 yrs | 0 | |
| US1968039A | Educational apparatus | Central Scientific Co | Expired / Lapsed | 1933-02-06 | 1934-07-31 | 1953-02-06 | 0.0 yrs | 0 | |
| US1184430A | Temperature-control mechanism. | Central Scientific Co | Expired / Lapsed | 1914-06-18 | 1916-05-23 | 1934-06-18 | 0.0 yrs | 0 |