US3461783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exposure measuring mechanism for a single lens reflex camera having interchangeable lenses
Assignee: Nikon Corp
•
Filing: 1966-02-10
•
Granted: 1969-08-19
•
Expires: 1986-02-10
Abstract
No abstract record available.
Inventors
- 👤 Tatsuo Fujii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:20
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3018706A
Cited
US3078772A
Cited
US3072029A
Cited
US3082672A
Cited
US3073222A
Cited
US3093043A
Cited
US3163097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |