Automatic Electric Inc
AutomaticActive Patents
0
Total Holdings
22
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US1794888A | Automatic switch | Expired / Lapsed | 1923-03-14 | 1931-03-03 | 0 | Details |
| US1765538A | Remote control system | Expired / Lapsed | 1921-11-16 | 1930-06-24 | 0 | Details |
| US1738931A | Zone metering system | Expired / Lapsed | 1926-02-12 | 1929-12-10 | 0 | Details |
| US1735575A | Automatic telephone system | Expired / Lapsed | 1917-10-13 | 1929-11-12 | 0 | Details |
| US1727137A | Automatic telephone system | Expired / Lapsed | 1925-12-21 | 1929-09-03 | 0 | Details |
| US1721920A | Telephone system | Expired / Lapsed | 1925-08-28 | 1929-07-23 | 0 | Details |
| US1721640A | Automatic telephone system | Expired / Lapsed | 1925-03-26 | 1929-07-23 | 0 | Details |
| US1720157A | Measured-service telephone system | Expired / Lapsed | 1926-06-21 | 1929-07-09 | 0 | Details |
| US1718914A | Telephone system | Expired / Lapsed | 1926-06-18 | 1929-06-25 | 0 | Details |
| US1704380A | Radio receiving set | Expired / Lapsed | 1923-01-17 | 1929-03-05 | 0 | Details |
| US1681039A | Automatic telephone trunking system | Expired / Lapsed | 1919-12-27 | 1928-08-14 | 0 | Details |
| US1676742A | Traffic-recording equipment for telephone systems | Expired / Lapsed | 1924-07-12 | 1928-07-10 | 0 | Details |
| US1674411A | Traffic-recording equipment for telephone systems | Expired / Lapsed | 1924-04-18 | 1928-06-19 | 0 | Details |
| US1674127A | Remote control system | Expired / Lapsed | 1923-05-17 | 1928-06-19 | 0 | Details |
| US1673420A | Automatic telephone system | Expired / Lapsed | 1925-02-20 | 1928-06-12 | 0 | Details |
| US1671791A | Automatic telephone system | Expired / Lapsed | 1922-08-17 | 1928-05-29 | 0 | Details |
| US1670252A | Automatic telephone system | Expired / Lapsed | 1920-09-22 | 1928-05-15 | 0 | Details |
| US1668541A | Traffic recorder for telephone systems | Expired / Lapsed | 1922-07-12 | 1928-05-01 | 0 | Details |
| US1665466A | Automatic telephone system | Expired / Lapsed | 1923-08-24 | 1928-04-10 | 0 | Details |
| US1649494A | Automatic telephone system | Expired / Lapsed | 1921-07-06 | 1927-11-15 | 0 | Details |
| US1633116A | Telephone system | Expired / Lapsed | 1923-02-16 | 1927-06-21 | 0 | Details |
| US1580252A | Automatic telephone system | Expired / Lapsed | 1918-03-25 | 1926-04-13 | 0 | Details |