Patent US2908571A successfully refreshed from Google Patents.
US2908571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reflex copying process
Assignee: Eastman Kodak Co
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Filing: 1956-02-08
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Granted: 1959-10-13
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Expires: 1976-02-08
Abstract
No abstract record available.
Inventors
- 👤 Roman Pierre Amedee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:21
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/08; G03C5/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A REFLEX COPY PROCESS WHICH COMPRISES PLACING IN CONTACT WITH AN ORIGINAL TO BE COPIED, THE SUPPORT SIDE OF AN ELEMENT COMPRISING A LIGHT-SENSITIVE EMULSION LAYER AND A PAPER SUPPORT HAVING A HIGH TRANSPARENCY, SAID SUPPORT CONTAINING A TRANSPARENTIZING AGENT SELECTED FROM THE CLASS CONSISTING OF POLYGLYCOLS, CONDENSATION PRODUCTS OF EHTYLENE OXIDE WITH AN ALIPHATIC ALCOHOL CONTAINING AT LEAST 8 CARBON ATOMS, SODIUM LACTATE, TRIETHANOLOMIDE LACTATE, TRIETHANOLAMINE CITRATE, SODIUM OLEATE AND POLYVINYL ALCOHOL, AND WHICH IS DISSOLVED AND REMOVED BY THE PHOTOGRAPHIC DEVELOPING AND WASHING BATHS USED IN PROCESSING THE ELEMENT, AND WHICH WHEN SO DISSOLVED AND REMOVED PRODUCES DURING PHOTOGRAPHIC PROCESSING A PERMANENT INCREASE IN THE OPACITY OF THE SUPPORT, EXPOSING SAID ELEMENT TO LIGHT FROM THE EMULSION SIDE OF SAID ELEMENT AND CAUSING LIGHT TO BE REFLECTED FROM SAID ORIGINAL TO FORM AN IMAGE IN SAID EMULSION, AND PROCESSING SAID ELEMENT PHOTOGRAPHICALLY TO PRODUCE A RIGHT-READING PHOTOGRAPHIC COPY OF SAID ORIGINAL AND TO PRODUCE A PERMANENT INCREASE IN THE CAPACITY OF THE SUPPORT.
Claim 2
Dependent Claim
165 words
A REFLEX COPY PROCESS WHICH COMPRISES PLACING IN CONTACT WITH AN ORIGINAL TO BE COPIED, THE SUPPORT SIDE OF AN ELEMENT COMPRISING A LIGHT-SENSITIVE EMULSION LAYER AND A PAPER SUPPORT HAVING A HIGH TRANSPARENCY, SAID SUPPORT CONTAINING A TRANSPARENTIZING AGENT SELECTED FROM THE CLASS CONSISTING OF POLYGLYCOLS, CONDENSATION PRODUCTS OF EHTYLENE OXIDE WITH AN ALIPHATIC ALCOHOL CONTAINING AT LEAST 8 CARBON ATOMS, SODIUM LACTATE, TRIETHANOLOMIDE LACTATE, TRIETHANOLAMINE CITRATE, SODIUM OLEATE AND POLYVINYL ALCOHOL, AND WHICH IS DISSOLVED AND REMOVED BY THE PHOTOGRAPHIC DEVELOPING AND WASHING BATHS USED IN PROCESSING THE ELEMENT, AND WHICH WHEN SO DISSOLVED AND REMOVED PRODUCES DURING PHOTOGRAPHIC PROCESSING A PERMANENT INCREASE IN THE OPACITY OF THE SUPPORT, EXPOSING SAID ELEMENT TO LIGHT FROM THE EMULSION SIDE OF SAID ELEMENT AND CAUSING LIGHT TO BE REFLECTED FROM SAID ORIGINAL TO FORM AN IMAGE IN SAID EMULSION, AND PROCESSING SAID ELEMENT PHOTOGRAPHICALLY TO PRODUCE A RIGHT-READING PHOTOGRAPHIC COPY OF SAID ORIGINAL AND TO PRODUCE A PERMANENT INCREASE IN THE CAPACITY OF THE SUPPORT.
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) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |