Patent EP0097282A2 successfully refreshed from Google Patents.
US2659680A
Expired / Lapsed
US
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Preparation of photographic paper having good curl characteristics
Assignee: Eastman Kodak Co
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Filing: 1951-04-24
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Granted: 1953-11-17
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Expires: 1971-04-24
Abstract
No abstract record available.
Inventors
- 👤 Glen G Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:27
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775; G03C1/81; Y; Y10; Y10S; Y10S430/00; Y10S430/131; Y10S430/136
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF PREPARING PHOTOGRAPHIC PAPER WHEREBY THE CURLING CHARACTERISTICS THEREOF ARE MINIMIZED WHICH COMPRISES APPLYING TO THE PAPER A PHOTOGRAPHIC EMULSION COATING AND, ON THE OPPOSITE SIDE OF THAT PAPER, NO LATER THAN THE APPLICATION OF THE EMULSION COATING, MOISTURE IN A SUFFICIENT AMOUNT TO INCREASE THE MOISTURE CONTENT OF THE PAPER 2-5% BASED ON THE WEIGHT OF THE PAPER, FOLLOWED BY A DRYING OPERATION IN WHICH THE MOISTURE CONTENT OF BOTH THE PAPER AND THE EMULSION IS REDUCED.
Claim 2
Independent Claim
80 words
A METHOD OF PREPARING PHOTOGRAPHIC PAPER WHEREBY THE CURLING CHARACTERISTICS THEREOF ARE MINIMIZED WHICH COMPRISES APPLYING TO THE PAPER A PHOTOGRAPHIC EMULSION COATING AND, ON THE OPPOSITE SIDE OF THAT PAPER, NO LATER THAN THE APPLICATION OF THE EMULSION COATING, MOISTURE IN A SUFFICIENT AMOUNT TO INCREASE THE MOISTURE CONTENT OF THE PAPER 2-5% BASED ON THE WEIGHT OF THE PAPER, FOLLOWED BY A DRYING OPERATION IN WHICH THE MOISTURE CONTENT OF BOTH THE PAPER AND THE EMULSION IS REDUCED.
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) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |