Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US1142384A | Telegraphone. | AMERICAN TELEGRAPHONE Co | Expired / Lapsed | 1909-03-17 | 1915-06-08 | 1929-03-17 | 0.0 yrs | 0 | |
| US909414A | Telegraphone apparatus. | AMERICAN TELEGRAPHONE Co | Expired / Lapsed | 1907-12-31 | 1909-01-12 | 1927-12-31 | 0.0 yrs | 0 |