Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2213098A | Pen for recording instruments | Crosby Steam Gage & Valve Co | Expired / Lapsed | 1939-03-16 | 1940-08-27 | 1959-03-16 | 0.0 yrs | 0 | |
| US1949930A | Steam valve | Crosby Steam Gage & Valve Co | Expired / Lapsed | 1929-07-13 | 1934-03-06 | 1949-07-13 | 0.0 yrs | 0 |