Patent Explorer
Browse, filter, and analyze 12 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4492832A | Hand-controllable switching device for electrosurgical instruments | Birtcher Corp | Expired / Lapsed | 1982-12-23 | 1985-01-08 | 2002-12-23 | 0.0 yrs | 19 | |
| US4034761A | Disposable electrosurgical switching assembly | Birtcher Corp | Expired / Lapsed | 1975-12-15 | 1977-07-12 | 1995-12-15 | 0.0 yrs | 28 | |
| US4032738A | Electro-surgical instrument | Birtcher Corp | Expired / Lapsed | 1975-05-15 | 1977-06-28 | 1995-05-15 | 0.0 yrs | 16 | |
| US3964487A | Uncomplicated load-adapting electrosurgical cutting generator | Birtcher Corp | Expired / Lapsed | 1974-12-09 | 1976-06-22 | 1994-12-09 | 0.0 yrs | 15 | |
| US3908641A | Electrocardiograph with improved stylus control circuits | Birtcher Corp | Expired / Lapsed | 1974-06-07 | 1975-09-30 | 1994-06-07 | 0.0 yrs | 12 | |
| US3610228A | Apparatus for measuring body fluid pressure | Birtcher Corp | Expired / Lapsed | 1967-01-06 | 1971-10-05 | 1987-01-06 | 0.0 yrs | 2 | |
| US3513833A | Medical monitoring system | Birtcher Corp | Expired / Lapsed | 1967-03-17 | 1970-05-26 | 1987-03-17 | 0.0 yrs | 0 | |
| US3333156A | Modular printed circuit board rack with improved card guide | Birtcher Corp | Expired / Lapsed | 1965-12-01 | 1967-07-25 | 1985-12-01 | 0.0 yrs | 2 | |
| US2828747A | Gas-blanketed electro-surgical device | Birtcher Corp | Expired / Lapsed | 1952-12-06 | 1958-04-01 | 1972-12-06 | 0.0 yrs | 0 | |
| US2828748A | Gas blanketed electro-surgical device | Birtcher Corp | Expired / Lapsed | 1953-03-16 | 1958-04-01 | 1973-03-16 | 0.0 yrs | 0 | |
| US2808833A | Gas blanketed clotting instrument | Birtcher Corp | Expired / Lapsed | 1952-12-06 | 1957-10-08 | 1972-12-06 | 0.0 yrs | 0 | |
| US2333760A | Therapy apparatus | Birtcher Corp | Expired / Lapsed | 1941-09-02 | 1943-11-09 | 1961-09-02 | 0.0 yrs | 0 |