US3592640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing a planographic printing master
Assignee: Agfa Gevaert NV
•
Filing: 1968-03-06
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Granted: 1971-07-13
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Expires: 1988-03-06
Abstract
Abstract A PLANOGRAPHIC PRINTING PLATE OBTAINING BY XEROGRAPHIC EXPOSURE AND DEVELOPMENT IS HYDROPHILIZED WITH AN AQUEOUS SOLUTION CONTAINING THE PARTIAL ESTE OF A PHOSPHORUS OXY ACID WITH A POLYHYDROXY LOWER ALIPHATIC COMPOUND OR A POLYHYDROXY CYCLOHEXANE.
Inventors
- 👤 Jozef Leonard Van Engeland
- 👤 Noel Jozef De Volder
- 👤 Jozef Frans Willems
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:19
CPC Classifications
G; G03; G03G; G03G13/00; G03G13/26; G03G13/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |