Patent US4049267A successfully refreshed from Google Patents.
Patent US1843191A successfully refreshed from Google Patents.
Patent US3223524A successfully refreshed from Google Patents.
US3223524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of planographic printing plates having an aluminum support
Assignee: Agfa Gevaert NV
•
Filing: 1960-09-26
•
Granted: 1965-12-14
•
Expires: 1980-09-26
Abstract
No abstract record available.
Inventors
- 👤 Konig Anita Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:24
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C07D285/135; G; G03; G03F; G03F7/00; G03F7/004; G03F7/06; G03F7/063; G03F7/066
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
93 words
A PROCESS FOR PRODUCING PLANOGRAPHIC PRINTING PLATES CONSISTING IN DEVELOPING AN IMAGWISE EXPOSED SILVER HALIDE EMULSION LAYER WHIE IN CONTACT WITH AN ALUMINUM PLATE IN A SILVER HALIDE DEVELOPER SOLUTION CONTAINING A SILVER HALIDE SOLVENT FOR DISSOLVING SILVER HALIDE FROM THE UNEXPOSED AREAS OF SAID SILVER HALIDE EMULSION LAYER, TRANSFERRING THE DISSOLVED UNEXPOSED SILVER HALIDE TO SAID ALUMINUM PLATE AND REDUCING THE DISSOLVED SILVER HALIDE ON SAID ALUMINIUM PLATE TO OBTAIN A CORRESPONDING SILVER IMAGE, CHARACTERIZED IN THEREAFTER CONTACTING SAID SILVER IMAGE DIRECTLY WITH A HYDROPHOBING AMOUNT OF A 2-MERCAPTO1,3,4-THIODIAZOLE HAVING THE FORMULA
References Cited (Backward Citations)
US2184288A
Cited
US2352014A
Cited
US2514650A
Cited
US2685588A
Cited
GB760181A
Cited
US3083097A
Cited
BE572336A
Cited
US2891961A
Cited
BE582161A
Cited
BE582160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |