Patent Explorer
Browse, filter, and analyze 2 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4382665A | Automatic focusing device | Mamiya-OP Co Ltd | Expired / Lapsed | 1981-05-27 | 1983-05-10 | 2001-05-27 | 0.0 yrs | 3 | |
| US4303320A | Automatic focus adjusting device | Mamiya-OP Co Ltd | Expired / Lapsed | 1979-07-12 | 1981-12-01 | 1999-07-12 | 0.0 yrs | 2 |