US3249001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic focusing photographic projector
Assignee: Rollei of America Inc
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Filing: 1963-06-10
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Granted: 1966-05-03
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Expires: 1983-06-10
Abstract
No abstract record available.
Inventors
- 👤 Norman L Stauffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:07
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/53
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
IN COMBINATION WITH A PHOTOGRAPHICH TRANSPARENCY PROJECTOR HAVING AN OBJECTIVE LENS WHICH IS ADAPTED TO FOCUS A PROJECTED IMAGE OF A PHOTOGRAPHIC TRANSPARENCY SPACED FROM SAID LENS ON A SCREEN OR THE LIKE, SAID LENS AND SAID PHOTOGRAPHIC TRANSPARENCY BEING SPACED ALONG AN OPTICAL AXIS, THE IMPROVEMENT, INCLUDING, MEANS TO MAINTAIN A CONSTANT LENS-TO-PHOTOGRAPHIC TRANSPARENCY DISTANCE, INCLUDING; FIRST MEANS TO FORM AN IMAGE OF A RADIATION SOURCE AT THE NORMAL PLANE OF SAID PHOTOGRAPHIC TRANSPARENCY, SECOND MEANS TO RE-IMAGE THE REFLECTED IMAGE OF THE RADIATION SOURCE AT A POINT UPON RADIATIONSENSING MEANS RESPONSIVE TO THE POSITION OF SAID RE-IMAGE THEREUPON, AND THIRD MEANS CONTROLLED BY SAID SENSING
Claim 2
Dependent Claim
107 words
IN COMBINATION WITH A PHOTOGRAPHICH TRANSPARENCY PROJECTOR HAVING AN OBJECTIVE LENS WHICH IS ADAPTED TO FOCUS A PROJECTED IMAGE OF A PHOTOGRAPHIC TRANSPARENCY SPACED FROM SAID LENS ON A SCREEN OR THE LIKE, SAID LENS AND SAID PHOTOGRAPHIC TRANSPARENCY BEING SPACED ALONG AN OPTICAL AXIS, THE IMPROVEMENT, INCLUDING, MEANS TO MAINTAIN A CONSTANT LENS-TO-PHOTOGRAPHIC TRANSPARENCY DISTANCE, INCLUDING; FIRST MEANS TO FORM AN IMAGE OF A RADIATION SOURCE AT THE NORMAL PLANE OF SAID PHOTOGRAPHIC TRANSPARENCY, SECOND MEANS TO RE-IMAGE THE REFLECTED IMAGE OF THE RADIATION SOURCE AT A POINT UPON RADIATIONSENSING MEANS RESPONSIVE TO THE POSITION OF SAID RE-IMAGE THEREUPON, AND THIRD MEANS CONTROLLED BY SAID SENSING
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |