Patent Explorer
Browse, filter, and analyze 14 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2590926A | Multirelay electric timer | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1950-02-07 | 1952-04-01 | 1970-02-07 | 0.0 yrs | 0 | |
| US2452431A | Production of vulcanizable elastic coil cables having reversingly coiled portions | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1945-02-09 | 1948-10-26 | 1965-02-09 | 0.0 yrs | 0 | |
| US2334333A | Train dispatcher signal system | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1941-03-19 | 1943-11-16 | 1961-03-19 | 0.0 yrs | 0 | |
| US2298489A | Group-call telephone system | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1941-09-10 | 1942-10-13 | 1961-09-10 | 0.0 yrs | 0 | |
| US2298487A | Credit-authorization telephone system | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1941-04-17 | 1942-10-13 | 1961-04-17 | 0.0 yrs | 0 | |
| US2192421A | Remote reading register | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1935-11-25 | 1940-03-05 | 1955-11-25 | 0.0 yrs | 0 | |
| US2149753A | Composite selector circuit | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1936-07-20 | 1939-03-07 | 1956-07-20 | 0.0 yrs | 0 | |
| US1943395A | Television apparatus | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1929-11-29 | 1934-01-16 | 1949-11-29 | 0.0 yrs | 0 | |
| US1850102A | Winding machine | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1927-08-24 | 1932-03-22 | 1947-08-24 | 0.0 yrs | 0 | |
| US1742462A | Rheostat | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1924-04-02 | 1930-01-07 | 1944-04-02 | 0.0 yrs | 0 | |
| US1682049A | Alarm circuit | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1924-10-13 | 1928-08-28 | 1944-10-13 | 0.0 yrs | 0 | |
| US1514618A | Terminal strip | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1920-07-12 | 1924-11-11 | 1940-07-12 | 0.0 yrs | 0 | |
| US1181513A | Spring binding-post. | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1913-08-04 | 1916-05-02 | 1933-08-04 | 0.0 yrs | 0 | |
| US822590A | Distributing-board. | Kellogg Switchboard and Supply Co | Expired / Lapsed | 1902-10-11 | 1906-06-05 | 1922-10-11 | 0.0 yrs | 0 |