Patent Explorer
Browse, filter, and analyze 6 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2679637A | Synchronous supervisory control system | NORTH ELECTRIC MANUFACTURING Co | Expired / Lapsed | 1950-06-06 | 1954-05-25 | 1970-06-06 | 0.0 yrs | 0 | |
| US2616959A | Supervisory control system safeguard | NORTH ELECTRIC MANUFACTURING Co | Expired / Lapsed | 1950-04-04 | 1952-11-04 | 1970-04-04 | 0.0 yrs | 0 | |
| US2444243A | Remote-control system | NORTH ELECTRIC MANUFACTURING Co | Expired / Lapsed | 1946-08-07 | 1948-06-29 | 1966-08-07 | 0.0 yrs | 0 | |
| US2396332A | Relay construction | NORTH ELECTRIC MANUFACTURING Co | Expired / Lapsed | 1940-07-29 | 1946-03-12 | 1960-07-29 | 0.0 yrs | 0 | |
| US2091301A | Supervisory control system | NORTH ELECTRIC MANUFACTURING Co | Expired / Lapsed | 1931-07-03 | 1937-08-31 | 1951-07-03 | 0.0 yrs | 0 | |
| US1929669A | Control system for automatic substations | NORTH ELECTRIC MANUFACTURING Co | Expired / Lapsed | 1922-07-24 | 1933-10-10 | 1942-07-24 | 0.0 yrs | 0 |