Patent Explorer
Browse, filter, and analyze 6 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3643030A | Method for transferring information in the form of time separated signal elements between subscribers in a telecommunication system and a telecommunication system, etc. | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1970-02-06 | 1972-02-15 | 1990-02-06 | 0.0 yrs | 18 | |
| US2725474A | Oscillation circuit with superconductor | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1950-08-04 | 1955-11-29 | 1970-08-04 | 0.0 yrs | 0 | |
| US2666884A | Rectifier and converter using superconduction | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1950-08-04 | 1954-01-19 | 1970-08-04 | 0.0 yrs | 0 | |
| US2664552A | Device for connection of cables by means of plugs and sockets | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1951-06-11 | 1953-12-29 | 1971-06-11 | 0.0 yrs | 0 | |
| US2583848A | Switching device for the setting of crossbar switches by means of markers | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1947-05-23 | 1952-01-29 | 1967-05-23 | 0.0 yrs | 0 | |
| US2482998A | Switching device for distribution of programs | Telefonaktiebolaget LM Ericsson AB | Expired / Lapsed | 1947-03-25 | 1949-09-27 | 1967-03-25 | 0.0 yrs | 0 |