Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2159232A | Pressure fluid motor | WILLIAM H KELLER Inc | Expired / Lapsed | 1937-10-28 | 1939-05-23 | 1957-10-28 | 0.0 yrs | 0 | |
| US1640620A | Governor for pressure-fluid-operated tools | WILLIAM H KELLER Inc | Expired / Lapsed | 1925-08-29 | 1927-08-30 | 1945-08-29 | 0.0 yrs | 0 | |
| US1633501A | Impact tool | WILLIAM H KELLER Inc | Expired / Lapsed | 1922-10-10 | 1927-06-21 | 1942-10-10 | 0.0 yrs | 0 |