Patent US1503858A successfully refreshed from Google Patents.
Patent US2798004A successfully refreshed from Google Patents.
US2798004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film lacquer
Assignee: Eastman Kodak Co
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Filing: 1954-01-26
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Granted: 1957-07-02
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Expires: 1974-01-26
Abstract
No abstract record available.
Inventors
- 👤 Edward M Weigel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:18
CPC Classifications
G; G03; G03C; G03C11/00; G03C11/08; Y; Y10; Y10S; Y10S430/00; Y10S430/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PHOTOGRAPHIC PRODUCT COMPRISING A SUPPORT MEMBER CARRYING A PHOTOGRAPHIC IMAGE PRODUCED BY EXPOSING AND PROCESSING A LIGHT-SENSITIVE PHOTOGRAPHIC EMULSION AND SUPERIMPOSED UPON THE PHOTOGRAPHIC IMAGE, A PROTECTIVE COATING OF POLYVINYL PHTHALATE PRODUCED FROM A COATING COMPOSITION CONTAINING 1.0 TO 10.0% POLYVINYL PHTHALATE HAVING A PHTHALYL CONTENT BETWEEN 50-75% DISSOLVED IN AN AMOUNT OF AMMONIUM HYDROXIDE SUFFICIENT TO FORM A STOICHIOMETRIC EQUIVALENT TO THE POLYVINYL PHTHALATE, ABOUT 0.24% OF A WETTING AGENT SELECTED FROM THE GROUP CONSISTING OF SAPONIN, FATTY ALCOHOL SULPHATES, ALKYL ARYL POLYETHER ALCOHOL, AND THE SODIUM SALT OF 1,5NAPHTHALENE DISULFONIC ACID, AND FROM .05 TO .5% SOLID WATER-SOLUBLE POLYETHYLENE GLYCOL.
Claim 2
Dependent Claim
103 words
A PHOTOGRAPHIC PRODUCT COMPRISING A SUPPORT MEMBER CARRYING A PHOTOGRAPHIC IMAGE PRODUCED BY EXPOSING AND PROCESSING A LIGHT-SENSITIVE PHOTOGRAPHIC EMULSION AND SUPERIMPOSED UPON THE PHOTOGRAPHIC IMAGE, A PROTECTIVE COATING OF POLYVINYL PHTHALATE PRODUCED FROM A COATING COMPOSITION CONTAINING 1.0 TO 10.0% POLYVINYL PHTHALATE HAVING A PHTHALYL CONTENT BETWEEN 50-75% DISSOLVED IN AN AMOUNT OF AMMONIUM HYDROXIDE SUFFICIENT TO FORM A STOICHIOMETRIC EQUIVALENT TO THE POLYVINYL PHTHALATE, ABOUT 0.24% OF A WETTING AGENT SELECTED FROM THE GROUP CONSISTING OF SAPONIN, FATTY ALCOHOL SULPHATES, ALKYL ARYL POLYETHER ALCOHOL, AND THE SODIUM SALT OF 1,5NAPHTHALENE DISULFONIC ACID, AND FROM .05 TO .5% SOLID WATER-SOLUBLE POLYETHYLENE GLYCOL.
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) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |