National Lock Washer Co
National LActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2337667A | Feed mechanism for assembly machines | Expired / Lapsed | 1942-08-25 | 1943-12-28 | 0 | Details |
| US2254288A | Screw assembly for electrical apparatus | Expired / Lapsed | 1939-04-18 | 1941-09-02 | 0 | Details |
| US2032794A | Bus or car window construction | Expired / Lapsed | 1934-01-13 | 1936-03-03 | 0 | Details |
| US1976808A | Bus or car window construction | Expired / Lapsed | 1933-08-24 | 1934-10-16 | 0 | Details |
| US1972156A | Plug mounting | Expired / Lapsed | 1932-02-11 | 1934-09-04 | 0 | Details |
| US1703092A | Window construction | Expired / Lapsed | 1927-11-30 | 1929-02-26 | 0 | Details |
| US1550701A | Shade roller | Expired / Lapsed | 1924-04-12 | 1925-08-25 | 0 | Details |