Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2527523A | Frequency control system | Farnsworth Research Corp | Expired / Lapsed | 1944-08-11 | 1950-10-31 | 1964-08-11 | 0.0 yrs | 0 | |
| US2431510A | Photocell multiplier apparatus | Farnsworth Research Corp | Expired / Lapsed | 1944-09-29 | 1947-11-25 | 1964-09-29 | 0.0 yrs | 0 |