Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2981107A | Automatic range change circuit | Information Systems Inc | Expired / Lapsed | 1955-12-28 | 1961-04-25 | 1975-12-28 | 0.0 yrs | 0 | |
| US2956271A | Low level scanner and analog to digital converter | Information Systems Inc | Expired / Lapsed | 1957-05-06 | 1960-10-11 | 1977-05-06 | 0.0 yrs | 0 | |
| US2922990A | Data reduction system | Information Systems Inc | Expired / Lapsed | 1956-12-20 | 1960-01-26 | 1976-12-20 | 0.0 yrs | 0 | |
| US2905520A | Data recording system | Information Systems Inc | Expired / Lapsed | 1956-06-22 | 1959-09-22 | 1976-06-22 | 0.0 yrs | 0 |