Patent Explorer
Browse, filter, and analyze 8 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3276909A | Fuel cell electrodes | Leesona Corp | Expired / Lapsed | 1961-04-06 | 1966-10-04 | 1981-04-06 | 0.0 yrs | 2 | |
| US3097116A | Fuel cell electrodes | Leesona Corp | Expired / Lapsed | 1960-12-15 | 1963-07-09 | 1980-12-15 | 0.0 yrs | 2 | |
| US2972112A | Delay timer | Leesona Corp | Expired / Lapsed | 1958-02-28 | 1961-02-14 | 1978-02-28 | 0.0 yrs | 0 | |
| US2369488A | Method of making hollow articles | Leesona Corp | Expired / Lapsed | 1940-08-14 | 1945-02-13 | 1960-08-14 | 0.0 yrs | 0 | |
| US1996319A | Shifting means for rotatable elements | Leesona Corp | Expired / Lapsed | 1933-03-17 | 1935-04-02 | 1953-03-17 | 0.0 yrs | 0 | |
| US1955691A | Supply-holder | Leesona Corp | Expired / Lapsed | 1930-01-30 | 1934-04-17 | 1950-01-30 | 0.0 yrs | 0 | |
| US1652601A | Cop holder or support | Leesona Corp | Expired / Lapsed | 1927-05-25 | 1927-12-13 | 1947-05-25 | 0.0 yrs | 0 | |
| US1171545A | Reel or runner. | Leesona Corp | Expired / Lapsed | 1912-12-02 | 1916-02-15 | 1932-12-02 | 0.0 yrs | 0 |