Patent US3100430A successfully refreshed from Google Patents.
US3100430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic device
Assignee: Optique et Precision de Levallois SA
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Filing: 1959-09-03
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Granted: 1963-08-13
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Expires: 1979-09-03
Abstract
No abstract record available.
Inventors
- 👤 Morelle Jules Louis Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:55
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/18; G03B13/24; G03B13/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A PHOTOGRAPHIC DEVICE, IN COMBINATION, AN OBJECTIVE FOR DIRECTING TO A FOCAL PLANE AN IMAGE OF A SUBJECT TO BE PHOTOGRAPHED; A SEMI-TRANSPARENT REFLECTOR LOCATED BETWEEN SAID OBJECTIVE AND FOCAL PLANE AND CROSSING THE OPTICAL AXIS OF SAID OBJECTIVE FOR DIRECTING AN IMAGE OF THE SUBJECT TO ONE SIDE OF THE OPTICAL AXIS; REFLECTING MEANS LOCATED AT SAID ONE SIDE OF SAID OPTICAL AXIS FOR RECEIVING THE IMAGE FROM SAID SEMI-TRANSPARENT REFLECTOR AND FOR DIRECTING THE IMAGE BACK THROUGH SAID SEMI-TRANSPARENT REFLECTOR ACROSS THE OPTICAL AXIS TO THE OTHER SIDE THEREOF; AND MEANS LOCATED AT SAID OTHER SIDE OF SAID OPTICAL AXIS FOR RENDERING THE IMAGE VISIBLE TO THE OPERATOR, SAID REFLECTING MEANS INCLUDING A CONCAVE REFLECTING SURFACE DIRECTED TOWARD SAID SEMI-TRANSPARENT REFLECTOR, AND A TRANSPARENT WINDOW SURROUNDED BY SAID CONCAVE REFLECTING SURFACE, AND A SEPARATE REFLECTOR LOCATED BEHIND SAID WINDOW AND EXTENDING ANGULARLY WITH RESPECT TO SAID CON-
Claim 2
Dependent Claim
150 words
IN A PHOTOGRAPHIC DEVICE, IN COMBINATION, AN OBJECTIVE FOR DIRECTING TO A FOCAL PLANE AN IMAGE OF A SUBJECT TO BE PHOTOGRAPHED; A SEMI-TRANSPARENT REFLECTOR LOCATED BETWEEN SAID OBJECTIVE AND FOCAL PLANE AND CROSSING THE OPTICAL AXIS OF SAID OBJECTIVE FOR DIRECTING AN IMAGE OF THE SUBJECT TO ONE SIDE OF THE OPTICAL AXIS; REFLECTING MEANS LOCATED AT SAID ONE SIDE OF SAID OPTICAL AXIS FOR RECEIVING THE IMAGE FROM SAID SEMI-TRANSPARENT REFLECTOR AND FOR DIRECTING THE IMAGE BACK THROUGH SAID SEMI-TRANSPARENT REFLECTOR ACROSS THE OPTICAL AXIS TO THE OTHER SIDE THEREOF; AND MEANS LOCATED AT SAID OTHER SIDE OF SAID OPTICAL AXIS FOR RENDERING THE IMAGE VISIBLE TO THE OPERATOR, SAID REFLECTING MEANS INCLUDING A CONCAVE REFLECTING SURFACE DIRECTED TOWARD SAID SEMI-TRANSPARENT REFLECTOR, AND A TRANSPARENT WINDOW SURROUNDED BY SAID CONCAVE REFLECTING SURFACE, AND A SEPARATE REFLECTOR LOCATED BEHIND SAID WINDOW AND EXTENDING ANGULARLY WITH RESPECT TO SAID CON-
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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |