Patent US3233533A successfully refreshed from Google Patents.
US3233533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
View finder-range finder for photographic cameras and motion picture cameras
Assignee: Carl Zeiss AG
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Filing: 1961-06-21
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Granted: 1966-02-08
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Expires: 1981-06-21
Abstract
No abstract record available.
Inventors
- 👤 Sauer Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:30
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/18; G03B13/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE COMBINATION WITH THE OBJECTIVE OF A PHOTOGRAPHIC CAMERA, OF A VIEW FINDER AND RANGE FINDER INCLUDING A FINDER OBJECTIVE, AN IMAGE REVERSING MEANS AND AN OCULAR FORMING A TERRESTRIAL TELESCOPE, PRISM ELEMENTS ARRANGED IN A PLANE IN COINCIDENCE WITH A PLANE IN SAID VIEW FINDER IN WHICH A REAL IMAGE OF THE OBJECT TO BE PHOTOGRAPHED IS FORMED, SAID PRISM ELEMENTS COVERING THE ENTIRE IMAGE FIELD, AND MEANS FOR MOVING SAID PRISM ELEMENTS WITHIN SAID PLANE IN A PREDETERMINED DIRECTION WITH SUCH A SPEED THAT A FUSED IMAGE IS OBTAINED IN SAID VIEW-FINDER WITH THE RESULT THAT THE SCREEN STRUCTURE OF SAID PRISM ELEMENTS IS NOT NOTICEABLE TO THE OBSERVER''S EYE OVER THE ENTIRE IMAGE FIELD.
Claim 2
Dependent Claim
117 words
THE COMBINATION WITH THE OBJECTIVE OF A PHOTOGRAPHIC CAMERA, OF A VIEW FINDER AND RANGE FINDER INCLUDING A FINDER OBJECTIVE, AN IMAGE REVERSING MEANS AND AN OCULAR FORMING A TERRESTRIAL TELESCOPE, PRISM ELEMENTS ARRANGED IN A PLANE IN COINCIDENCE WITH A PLANE IN SAID VIEW FINDER IN WHICH A REAL IMAGE OF THE OBJECT TO BE PHOTOGRAPHED IS FORMED, SAID PRISM ELEMENTS COVERING THE ENTIRE IMAGE FIELD, AND MEANS FOR MOVING SAID PRISM ELEMENTS WITHIN SAID PLANE IN A PREDETERMINED DIRECTION WITH SUCH A SPEED THAT A FUSED IMAGE IS OBTAINED IN SAID VIEW-FINDER WITH THE RESULT THAT THE SCREEN STRUCTURE OF SAID PRISM ELEMENTS IS NOT NOTICEABLE TO THE OBSERVER''S EYE OVER THE ENTIRE IMAGE FIELD.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |