US3401614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mirror reflex camera
Assignee: Zeiss Ikon AG
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Filing: 1966-06-27
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Granted: 1968-09-17
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Expires: 1986-06-27
Abstract
No abstract record available.
Inventors
- 👤 Gunther Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:58
CPC Classifications
G; G03; G03B; G03B7/00; G03B7/08; G03B7/099; G03B7/0993; G03B7/0997; G03B7/09971; G03B7/09976; G03B7/09972
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A MIRROR REFLEX CAMERA HAVING AN EXCHANGEABLE CAMERA OBJECTIVE ARRANGED ON THE FRONT WALL OF A CAMERA BODY, A VIEWFINDER, A PIVOTALLY MOUNTED PARTLY TRANSPARENT MIRROR FOR REFLECTING A PORTION OF THE LIGHT BEAM PASSING THROUGH SAID OBJECTIVE INTO SAID VIEWFINDER, A PHOTOELECTRIC ELEMENT FIXEDLY MOUNTED INSIDE SAID CAMERA BODY ON THE BOTTOM WALL THEREOF, A LIGHT BEAM DEFLECTING MEANS DISPOSED TOM WALL THEREOF, A LIGHT BEAM DEFLECTING MEANS DISPOSED ON THE REAR SAID PIVOTALLY MOUNTED PARTLY TRANSPARENT MIRROR FOR REFLECTING A PORTION OF THE LIGHT BEAM PASSING THROUGH SAID OBJECTIVE AND THROUGH SAID PARTLY TRANSPARENT MIRROR ONTO SAID PHOTOELECTRIC ELEMENT, AND A DIAPHRAGM PLATE HAVING AN APERTURE WHICH IS CONICAL IN CROSS-SECTION
Claim 2
Dependent Claim
113 words
A MIRROR REFLEX CAMERA HAVING AN EXCHANGEABLE CAMERA OBJECTIVE ARRANGED ON THE FRONT WALL OF A CAMERA BODY, A VIEWFINDER, A PIVOTALLY MOUNTED PARTLY TRANSPARENT MIRROR FOR REFLECTING A PORTION OF THE LIGHT BEAM PASSING THROUGH SAID OBJECTIVE INTO SAID VIEWFINDER, A PHOTOELECTRIC ELEMENT FIXEDLY MOUNTED INSIDE SAID CAMERA BODY ON THE BOTTOM WALL THEREOF, A LIGHT BEAM DEFLECTING MEANS DISPOSED TOM WALL THEREOF, A LIGHT BEAM DEFLECTING MEANS DISPOSED ON THE REAR SAID PIVOTALLY MOUNTED PARTLY TRANSPARENT MIRROR FOR REFLECTING A PORTION OF THE LIGHT BEAM PASSING THROUGH SAID OBJECTIVE AND THROUGH SAID PARTLY TRANSPARENT MIRROR ONTO SAID PHOTOELECTRIC ELEMENT, AND A DIAPHRAGM PLATE HAVING AN APERTURE WHICH IS CONICAL IN CROSS-SECTION
References Cited (Backward Citations)
US3093044A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |