Patent Explorer
Browse, filter, and analyze 5 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2978589A | Optical pyrometer | Servo Corp of America | Expired / Lapsed | 1956-01-16 | 1961-04-04 | 1976-01-16 | 0.0 yrs | 0 | |
| US2891157A | Frequency control means | Servo Corp of America | Expired / Lapsed | 1952-11-24 | 1959-06-16 | 1972-11-24 | 0.0 yrs | 0 | |
| US2883292A | Glass compositions | Servo Corp of America | Expired / Lapsed | 1957-05-23 | 1959-04-21 | 1977-05-23 | 0.0 yrs | 2 | |
| US2883293A | Glass composition | Servo Corp of America | Expired / Lapsed | 1957-06-11 | 1959-04-21 | 1977-06-11 | 0.0 yrs | 2 | |
| US2882783A | Radiant energy ground-clearance meter | Servo Corp of America | Expired / Lapsed | 1955-02-10 | 1959-04-21 | 1975-02-10 | 0.0 yrs | 0 |