US2570262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive planographic plate
Assignee: Columbia Ribbon and Carbon Manufacturing Co Inc
•
Filing: 1947-01-23
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Granted: 1951-10-09
•
Expires: 1967-01-23
Abstract
No abstract record available.
Inventors
- 👤 Douglas A Newman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:06
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/04; B; B41; B41N; B41N3/00; B41N3/03; B41N3/036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A PLANOGRAPHIC PLATE HAVING A PAPER FOUNDDATION, AN INSOLUBILIZED COATING OF A CARBOXYMETHYL CELLULOSE COMPOUND OVERLYING THE FRONT SURFACE OF SAID FOUNDATION, AND A PHOTOSENSITIVE LAYER OF BICHROMATED ALBUMIN ADHERING TO THE SURFACE OF SAID CARBOXYMETHYL CELLULOSE COATING.
Claim 2
Dependent Claim
38 words
A PLANOGRAPHIC PLATE HAVING A PAPER FOUNDDATION, AN INSOLUBILIZED COATING OF A CARBOXYMETHYL CELLULOSE COMPOUND OVERLYING THE FRONT SURFACE OF SAID FOUNDATION, AND A PHOTOSENSITIVE LAYER OF BICHROMATED ALBUMIN ADHERING TO THE SURFACE OF SAID CARBOXYMETHYL CELLULOSE COATING.
References Cited (Backward Citations)
US1704356A
Cited
US2127573A
Cited
US2184310A
Cited
US2230982A
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US2216735A
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US2311889A
Cited
US2405513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |