Patent Explorer
Browse, filter, and analyze 5 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US2892997A | Digital computing machines | Powers Samas Accounting Machines Ltd | Expired / Lapsed | 1956-09-24 | 1959-06-30 | 1976-09-24 | 0.0 yrs | 0 | |
| US2773443A | Apparatus for defining characters on impression-receiving material | Powers Samas Accounting Machines Ltd | Expired / Lapsed | 1954-02-16 | 1956-12-11 | 1974-02-16 | 0.0 yrs | 0 | |
| US2728289A | Apparatus for defining characters on impression-receiving material | Powers Samas Accounting Machines Ltd | Expired / Lapsed | 1954-05-19 | 1955-12-27 | 1974-05-19 | 0.0 yrs | 0 | |
| US2674652A | Method of and apparatus for defining characters on impression receiving material | Powers Samas Accounting Machines Ltd | Expired / Lapsed | 1951-07-10 | 1954-04-06 | 1971-07-10 | 0.0 yrs | 0 | |
| US2563290A | Pneumatic sensing mechanism for record-controlled statistical machines | Powers Samas Accounting Machines Ltd | Expired / Lapsed | 1950-05-10 | 1951-08-07 | 1970-05-10 | 0.0 yrs | 0 |