Edwin L Wiegand Co
Edwin L WiActive Patents
0
Total Holdings
12
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3458648A | Electrical connector | Expired / Lapsed | 1967-10-11 | 1969-07-29 | 0 | Details |
| US3017490A | Electric heaters | Expired / Lapsed | 1958-12-29 | 1962-01-16 | 0 | Details |
| US2933805A | Electric heaters | Expired / Lapsed | 1954-02-19 | 1960-04-26 | 0 | Details |
| US2727120A | Electric heaters | Expired / Lapsed | 1952-03-08 | 1955-12-13 | 0 | Details |
| US2718577A | Electric heating devices | Expired / Lapsed | 1953-02-13 | 1955-09-20 | 0 | Details |
| US2627014A | Radiant heater | Expired / Lapsed | 1950-08-25 | 1953-01-27 | 0 | Details |
| US2472144A | Electric heater for softening thermoplastics | Expired / Lapsed | 1947-07-08 | 1949-06-07 | 0 | Details |
| US2363329A | Method of making electrical heating elements | Expired / Lapsed | 1941-04-26 | 1944-11-21 | 0 | Details |
| US2274445A | Heating means | Expired / Lapsed | 1940-05-16 | 1942-02-24 | 0 | Details |
| US2080800A | Heating apparatus | Expired / Lapsed | 1935-09-20 | 1937-05-18 | 0 | Details |
| US2080799A | Thermally responsive device | Expired / Lapsed | 1934-03-15 | 1937-05-18 | 0 | Details |
| US2080797A | Air conditioning apparatus | Expired / Lapsed | 1933-05-19 | 1937-05-18 | 0 | Details |