Patent Explorer
Browse, filter, and analyze 3 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US3072746A | Automatic telephone dialing apparatus | ELECTRONIC SECRETARY IND Inc | Expired / Lapsed | 1957-05-01 | 1963-01-08 | 1977-05-01 | 0.0 yrs | 2 | |
| US3067289A | Integrating control timer | ELECTRONIC SECRETARY IND Inc | Expired / Lapsed | 1956-07-25 | 1962-12-04 | 1976-07-25 | 0.0 yrs | 0 | |
| US3050585A | Recording and reproducing mechanism of a telephone answering device | ELECTRONIC SECRETARY IND Inc | Expired / Lapsed | 1958-05-12 | 1962-08-21 | 1978-05-12 | 0.0 yrs | 0 |