Blue Ridge Glass Corp
Blue RidgeActive Patents
0
Total Holdings
7
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2780708A | Electric resistance heater | Expired / Lapsed | 1953-06-23 | 1957-02-05 | 0 | Details |
| US2706763A | Electric wall heater | Expired / Lapsed | 1953-09-16 | 1955-04-19 | 0 | Details |
| US2673142A | Electric heating element | Expired / Lapsed | 1949-04-15 | 1954-03-23 | 2 | Details |
| US2644066A | Electrical connector for resistance elements on glass plates | Expired / Lapsed | 1951-07-05 | 1953-06-30 | 0 | Details |
| US2623971A | Electric resistance heater | Expired / Lapsed | 1951-06-21 | 1952-12-30 | 0 | Details |
| US2463260A | Window ventilator heater | Expired / Lapsed | 1945-02-06 | 1949-03-01 | 0 | Details |
| US2191962A | Process of using grinding glass sands | Expired / Lapsed | 1938-03-28 | 1940-02-27 | 0 | Details |