US3083639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making planographic printing plates
Assignee: Fitchburg Paper Co
•
Filing: 1959-07-06
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Granted: 1963-04-02
•
Expires: 1979-07-06
Abstract
No abstract record available.
Inventors
- 👤 Thurlow John Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:51
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/03; B41N3/038
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
THE PROCESS OF MAKING A PLANOGRAPHIC PLATE WHICH COMPRISES APPLYING TO A COATED FLEXIBLE PAPER BASE A COMPOSITION FORMED BY DISSOLVING A LOWER ALKYL SILICATE IN AN ESSENTIALLY ORGANIC SOLVENT CONTAINING WATER IN AN AMOUNT LESS THAN 50 PERCENT BY VOLUME AND ADDING THERETO AN ALKALINE AGENT IN AN AMOUNT EFFECTIVE TO HYDROLYZE SAID SILICATE, AND DRYING SAID BASE THEREBY PROVIDING A PLANOGRAPHIC COATING THEREON.
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US2156100A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |