Patent US3620149A successfully refreshed from Google Patents.
US3620149A
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US
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Threaded type coupling device for coupling a lens barrel with a camera body
Assignee: OLYGIN OPTICAL CORP
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Filing: 1970-07-31
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Granted: 1971-11-16
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Expires: 1990-07-31
Abstract
Abstract IN A THREADED TYPE COUPLING DEVICE FOR COUPLING A LENS BARREL WITH A CAMERA BODY, EITHER OF THE LENS BARREL AND CAMERA BODY IS PROVIDED WITH AN INDEPENDENT THREADED CYLINDRICAL MEMBER CONTAINED THEREIN TO BE MOVABLE AXIALLY BUT NOT IN THE CIRCUMFERENTIAL DIRECTION, AND THE INDEPENDENT THREADED CYLINDRICAL MEMBER IS RESILIENTLY URGED BACK FROM THE OTHER OF THE LENS BARREL AND CAMERA BODY SO AS TO CAUSE THEM TO ABUT ON EACH OTHER A LITTLE BEFORE THE PREDETERMINED RELATIVE AXIAL AND CICUMFERENTIAL POSITION IS REACHED. FURTHER, A STOP MECHANISM IS PROVIDED FOR LOCKING THE LENS BARREL AND CAMERA BODY AGAINST RELATIVE ROTATION WHEN THEY ARE COUPLED AT SAID PREDETERMINED POINT.
Inventors
- 👤 Akira Ogihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:28
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/12; G03B17/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |