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US3253145A
Expired / Lapsed
US
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Apparatus for exposing and developing photosensitive elements
Assignee: Polaroid Corp
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Filing: 1962-08-01
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Granted: 1966-05-24
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Expires: 1982-08-01
Abstract
No abstract record available.
Inventors
- 👤 Herman E Erikson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:19
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/48; G03B17/50; G03B17/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A PHOTOGRAPHIC DEVICE INCLUDING MEANS FOR CONFINING A PHOTOSENSITIVE SHEET; MEANS DEFINING AN EXPOSURE STATION FOR EXPOSING SAID PHOTOSENSTIVE SHEET WHEN ADVANCED THEREIN FROM SAID CONFINING MEANS; MEANS DEFINING A DEVELOPMENT STATION FOR DEVELOPING SAID SHEET AFTER PHOTOEXPOSURE THEREOF; AND MEANS FOR ADVANCING SAID SHEET FROM SAID EXPOSURE STATION TO SAID DEVELOPMENT STATION, SAID PHOTOGRAPHIC DEVICE FURTHER INCLUDING A FRONT HOUSING MEAND DEFINING AN OPENING THEREIN FOR PHOTOEXPOSING SAID SHEET WHEN POSITIONED TEREBENEATH IN SAID EXPOSURE STATION; THE IMPROVEMENT WHICH COMPRISES MEANS FOR ADVANCING SAID SHEET FROM SAID CONFINING MEANS TO SAID EXPOSURE STATION, SAID ADVANCING MEANS COMPRISING MEANS ASSOCIATED WITH SAID CONDINING MEANS FOR ADVANCING SAID SHEET REARWARDLY WITH RESPECT TO SAID FRONT HOUSING AND MEANS FOR CHANGING SAID DIRECTION OF ADVANCEMENT FRONTWARDLY INTO SAID EXPOSURE STATION AND IN JUXTAPOSITION WITH SAID OPENING IN SAID FRONT HOUSING.
Claim 2
Dependent Claim
139 words
IN A PHOTOGRAPHIC DEVICE INCLUDING MEANS FOR CONFINING A PHOTOSENSITIVE SHEET; MEANS DEFINING AN EXPOSURE STATION FOR EXPOSING SAID PHOTOSENSTIVE SHEET WHEN ADVANCED THEREIN FROM SAID CONFINING MEANS; MEANS DEFINING A DEVELOPMENT STATION FOR DEVELOPING SAID SHEET AFTER PHOTOEXPOSURE THEREOF; AND MEANS FOR ADVANCING SAID SHEET FROM SAID EXPOSURE STATION TO SAID DEVELOPMENT STATION, SAID PHOTOGRAPHIC DEVICE FURTHER INCLUDING A FRONT HOUSING MEAND DEFINING AN OPENING THEREIN FOR PHOTOEXPOSING SAID SHEET WHEN POSITIONED TEREBENEATH IN SAID EXPOSURE STATION; THE IMPROVEMENT WHICH COMPRISES MEANS FOR ADVANCING SAID SHEET FROM SAID CONFINING MEANS TO SAID EXPOSURE STATION, SAID ADVANCING MEANS COMPRISING MEANS ASSOCIATED WITH SAID CONDINING MEANS FOR ADVANCING SAID SHEET REARWARDLY WITH RESPECT TO SAID FRONT HOUSING AND MEANS FOR CHANGING SAID DIRECTION OF ADVANCEMENT FRONTWARDLY INTO SAID EXPOSURE STATION AND IN JUXTAPOSITION WITH SAID OPENING IN SAID FRONT HOUSING.
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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |