E A Myers & Sons
E A MyersActive Patents
0
Total Holdings
6
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2444302A | Hearing aid | Expired / Lapsed | 1943-03-16 | 1948-06-29 | 0 | Details |
| US2326558A | Spring clip | Expired / Lapsed | 1943-03-09 | 1943-08-10 | 0 | Details |
| US2221651A | Pin socket | Expired / Lapsed | 1939-01-21 | 1940-11-12 | 0 | Details |
| US2112569A | Method and apparatus for selecting and prescribing audiphon… | Expired / Lapsed | 1936-06-16 | 1938-03-29 | 0 | Details |
| US1983178A | Earphone | Expired / Lapsed | 1933-05-22 | 1934-12-04 | 0 | Details |
| US1928669A | Transmitter | Expired / Lapsed | 1933-05-22 | 1933-10-03 | 0 | Details |