US3165997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragm device for single lens reflex camera
Assignee: Minolta Co Ltd
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Filing: 1961-08-18
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Granted: 1965-01-19
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Expires: 1981-08-18
Abstract
No abstract record available.
Inventors
- 👤 Sugano Shigeaki
- 👤 Tanizaki Osamu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:21
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/02; G03B9/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN A DIAPHRAGM DEVICE FOR A SINGLE LENS REFLEX CAMERA, THE COMBINATION COMPRISING AN OBJECTIVE LENS FRAME, A DIAPHRAGM CONTROLLING RING ROTATABLY MOUNTED AROUND THE OUTER PERIPHERY OF SAID LENS FRAME, A CAM PLATE SECURED TO SAID LENS FRAME, A DIAPHRAGM CONTROLLING LEVER PIVOTALLY ATTACHED TO SAID RING AND HAVING ONE END ENGAGING SAID CAM PLATE, A DIAPHRAGM ACTUATING RIG, DIAPHRAGM BLADE MEANS CARRIED BY SAID ACTUATING RING, A DIAPHRAGM ACTUATING LEVER HAVING ONE END OPERATIVELY CONNECTED TO SAID ACTUATING RING AND AN OPPOSITE END PIVOTALLY ATTACHED TO SAID LENS FRAME, SAID ACTUATING LEVER HAVING AN ARCUATE SHAPE AND BEING ENGAGED BY THE OPPOSITE END OF SAID DIA-
Claim 2
Dependent Claim
108 words
IN A DIAPHRAGM DEVICE FOR A SINGLE LENS REFLEX CAMERA, THE COMBINATION COMPRISING AN OBJECTIVE LENS FRAME, A DIAPHRAGM CONTROLLING RING ROTATABLY MOUNTED AROUND THE OUTER PERIPHERY OF SAID LENS FRAME, A CAM PLATE SECURED TO SAID LENS FRAME, A DIAPHRAGM CONTROLLING LEVER PIVOTALLY ATTACHED TO SAID RING AND HAVING ONE END ENGAGING SAID CAM PLATE, A DIAPHRAGM ACTUATING RIG, DIAPHRAGM BLADE MEANS CARRIED BY SAID ACTUATING RING, A DIAPHRAGM ACTUATING LEVER HAVING ONE END OPERATIVELY CONNECTED TO SAID ACTUATING RING AND AN OPPOSITE END PIVOTALLY ATTACHED TO SAID LENS FRAME, SAID ACTUATING LEVER HAVING AN ARCUATE SHAPE AND BEING ENGAGED BY THE OPPOSITE END OF SAID DIA-
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |