Patent US2822271A successfully refreshed from Google Patents.
US2822271A
Expired / Lapsed
US
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Photosensitive material
Assignee: Keuffel and Esser Co
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Filing: 1953-10-19
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Granted: 1958-02-04
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Expires: 1973-10-19
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm A Krieger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:29
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PHOTOSENSITIVE MATERIAL FOR FORMING A COLORED AZO DYE IMAGE COMPRISING A PAPER BASE SHEET CAPABLE OF PROVIDING COLOR CONTRAST WITH AN AZO DYE IMAGE AND HAVING A COATING OF AN AQUEOUS DISPERSION OF SOLID RESIN PARTICLES SELECTED FROM THE GROUP CONSISTING OF POLYVINYL ACETATE RESIN PARTICLES AND PLASTICIZED POLYVINYL ACETATE RESIN PARTICLES AS THE SOLE ORGANIC COLLOID AND FORMING A CONTINUOUS FILM, SAID DISPERSION HAVING A SOLIDS CONTENTS OF SAID RESIN OF AT LEAST 5% AND SAID CONTINUOUS FILM BEING SENSITIZED WITH A LIGHT SENSITIVE DIAZO COMPOUND.
Claim 2
Dependent Claim
88 words
A PHOTOSENSITIVE MATERIAL FOR FORMING A COLORED AZO DYE IMAGE COMPRISING A PAPER BASE SHEET CAPABLE OF PROVIDING COLOR CONTRAST WITH AN AZO DYE IMAGE AND HAVING A COATING OF AN AQUEOUS DISPERSION OF SOLID RESIN PARTICLES SELECTED FROM THE GROUP CONSISTING OF POLYVINYL ACETATE RESIN PARTICLES AND PLASTICIZED POLYVINYL ACETATE RESIN PARTICLES AS THE SOLE ORGANIC COLLOID AND FORMING A CONTINUOUS FILM, SAID DISPERSION HAVING A SOLIDS CONTENTS OF SAID RESIN OF AT LEAST 5% AND SAID CONTINUOUS FILM BEING SENSITIZED WITH A LIGHT SENSITIVE DIAZO COMPOUND.
References Cited (Backward Citations)
GB402737A
Cited
US2197456A
Cited
GB562666A
Cited
US2376005A
Cited
US2461023A
Cited
US2566709A
Cited
US2572252A
Cited
US2662013A
Cited
US2703756A
Cited
US2726956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |