Willard Storage Battery Co
Willard StActive Patents
0
Total Holdings
16
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2611118A | Trickle charger | Expired / Lapsed | 1947-11-22 | 1952-09-16 | 0 | Details |
| US2602003A | Rotating apparatus for blowing loose foreign material from … | Expired / Lapsed | 1946-10-30 | 1952-07-01 | 0 | Details |
| US2563936A | Method of manufacturing battery grids | Expired / Lapsed | 1948-02-06 | 1951-08-14 | 0 | Details |
| US2516048A | Heated battery | Expired / Lapsed | 1946-02-27 | 1950-07-18 | 0 | Details |
| US2416651A | Storage battery | Expired / Lapsed | 1943-07-14 | 1947-02-25 | 0 | Details |
| US2314203A | Battery separator | Expired / Lapsed | 1941-08-01 | 1943-03-16 | 0 | Details |
| US2282933A | Voltage regulator and the like | Expired / Lapsed | 1940-08-23 | 1942-05-12 | 0 | Details |
| US2218612A | Mold for battery grids | Expired / Lapsed | 1938-08-04 | 1940-10-22 | 0 | Details |
| US2208584A | Bushing inserter | Expired / Lapsed | 1935-06-13 | 1940-07-23 | 0 | Details |
| US2120120A | Method of making ribbed separators | Expired / Lapsed | 1934-07-17 | 1938-06-07 | 0 | Details |
| US2117382A | Storage battery separator | Expired / Lapsed | 1936-12-14 | 1938-05-17 | 0 | Details |
| US2052490A | Method of making microporous articles | Expired / Lapsed | 1933-11-20 | 1936-08-25 | 0 | Details |
| US2049201A | Invertible storage battery | Expired / Lapsed | 1935-02-23 | 1936-07-28 | 0 | Details |
| US2004304A | Storage battery separator | Expired / Lapsed | 1933-08-01 | 1935-06-11 | 0 | Details |
| US1947828A | Variable resistance device | Expired / Lapsed | 1931-12-24 | 1934-02-20 | 0 | Details |
| US1494436A | Clamp for use in coating battery boxes and the like | Expired / Lapsed | 1921-09-12 | 1924-05-20 | 0 | Details |