Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2264518A | Valve operating means for duplex double-acting steam pumps | Emsco Derrick and Equipment Co | Expired / Lapsed | 1941-01-24 | 1941-12-02 | 1961-01-24 | 0.0 yrs | 0 | |
| US2233649A | Valve | Emsco Derrick and Equipment Co | Expired / Lapsed | 1938-05-10 | 1941-03-04 | 1958-05-10 | 0.0 yrs | 0 |