Patent EP0255544A1 successfully refreshed from Google Patents.
US3556952A
Expired / Lapsed
US
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Bimetallic printing plates
Assignee: Union Carbide Corp
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Filing: 1966-05-18
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Granted: 1971-01-19
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Expires: 1986-05-18
Abstract
Abstract A METHOD OF PREPARING A BIMETALLIC PRINTING PLATE WHICH COMPRISES SUBJECTING A HYDROPHILIC METAL SUBSTRATE TO AN AQUEOUS SOLUTION OF WATER SOLUBLE SALT OF A HYDROPHOBIC METAL THROUGH A MEMBRANE HELD IN INTIMATE CONTACT WITH THE HYDROPHILIC SUBSTRATE, THE MEMBRANE BEING AN INSOLUBILIZED ASSOCIATION PRODUCT OF PHENOLIC RESIN AND AN ETHYLENE OXIDE POLYMER AND BEING C HARACTERIZED BY AREAS OF WATER PERMEABILITY AND WATER IMPERMEABILITY AND THEREAFTER REDUCING THE SALT OF A HYDROPHOBIC METAL TO HYDROPHOBIC METAL.
Inventors
- 👤 John S Fry
- 👤 Julius L Silver
- 👤 Richard W Quarles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:04
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0381; B; B41; B41N; B41N1/00; B41N1/04; B41N1/08; B41N1/10; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12903; Y10T428/12917
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |