Kellogg Switchboard and Supply Co
Kellogg SwActive Patents
0
Total Holdings
32
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US2590926A | Multirelay electric timer | Expired / Lapsed | 1950-02-07 | 1952-04-01 | 0 | Details |
| US2559702A | Selector switching system | Expired / Lapsed | 1946-02-23 | 1951-07-10 | 0 | Details |
| US2452431A | Production of vulcanizable elastic coil cables having rever… | Expired / Lapsed | 1945-02-09 | 1948-10-26 | 0 | Details |
| US2452432A | Method of making elastic coil structures with uncoiled ends | Expired / Lapsed | 1945-02-09 | 1948-10-26 | 0 | Details |
| US2442947A | Code-call system | Expired / Lapsed | 1944-01-24 | 1948-06-08 | 0 | Details |
| US2400530A | Selector switching system | Expired / Lapsed | 1944-04-20 | 1946-05-21 | 0 | Details |
| US2394762A | Method of making elastic coil cables | Expired / Lapsed | 1944-08-25 | 1946-02-12 | 0 | Details |
| US2365996A | Private branch exchange automatic telephone system | Expired / Lapsed | 1942-08-12 | 1944-12-26 | 0 | Details |
| US2340777A | Throat microphone | Expired / Lapsed | 1940-08-21 | 1944-02-01 | 0 | Details |
| US2334333A | Train dispatcher signal system | Expired / Lapsed | 1941-03-19 | 1943-11-16 | 0 | Details |
| US2325151A | 100-line all relay system | Expired / Lapsed | 1940-12-02 | 1943-07-27 | 0 | Details |
| US2298489A | Group-call telephone system | Expired / Lapsed | 1941-09-10 | 1942-10-13 | 0 | Details |
| US2298487A | Credit-authorization telephone system | Expired / Lapsed | 1941-04-17 | 1942-10-13 | 0 | Details |
| US2279531A | Automatic telephone system | Expired / Lapsed | 1940-07-18 | 1942-04-14 | 0 | Details |
| US2192421A | Remote reading register | Expired / Lapsed | 1935-11-25 | 1940-03-05 | 0 | Details |
| US2192747A | Call register | Expired / Lapsed | 1934-03-22 | 1940-03-05 | 0 | Details |
| US2186246A | Communication system | Expired / Lapsed | 1936-10-09 | 1940-01-09 | 0 | Details |
| US2149753A | Composite selector circuit | Expired / Lapsed | 1936-07-20 | 1939-03-07 | 0 | Details |
| US1943395A | Television apparatus | Expired / Lapsed | 1929-11-29 | 1934-01-16 | 0 | Details |
| US1850102A | Winding machine | Expired / Lapsed | 1927-08-24 | 1932-03-22 | 0 | Details |
| US1833984A | Socket | Expired / Lapsed | 1926-04-09 | 1931-12-01 | 0 | Details |
| US1742462A | Rheostat | Expired / Lapsed | 1924-04-02 | 1930-01-07 | 0 | Details |
| US1740977A | Switch mechanism | Expired / Lapsed | 1928-09-07 | 1929-12-24 | 0 | Details |
| US1682049A | Alarm circuit | Expired / Lapsed | 1924-10-13 | 1928-08-28 | 0 | Details |
| US1677185A | Receiver | Expired / Lapsed | 1925-03-14 | 1928-07-17 | 0 | Details |
| US1669929A | Transformer | Expired / Lapsed | 1924-12-26 | 1928-05-15 | 0 | Details |
| US1514618A | Terminal strip | Expired / Lapsed | 1920-07-12 | 1924-11-11 | 0 | Details |
| US1257287A | Switch device. | Expired / Lapsed | 1914-06-05 | 1918-02-19 | 0 | Details |
| US1181513A | Spring binding-post. | Expired / Lapsed | 1913-08-04 | 1916-05-02 | 0 | Details |
| US1014780A | Spool-head. | Expired / Lapsed | 1910-03-24 | 1912-01-16 | 0 | Details |
| US1011439A | Magnet-terminal. | Expired / Lapsed | 1906-03-02 | 1911-12-12 | 0 | Details |
| US822590A | Distributing-board. | Expired / Lapsed | 1902-10-11 | 1906-06-05 | 0 | Details |