US2826501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lithographic coating solution and lithographic plates coated therewith
Assignee: Litho Chemical and Supply Co Inc
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Filing: 1956-12-20
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Granted: 1958-03-11
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Expires: 1976-12-20
Abstract
No abstract record available.
Inventors
- 👤 George R Hodgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:06
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/016; G03F7/021; G03F7/0212; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A COATING MATERIAL FOR LITHOGRAPHIC PLATES CONSISTING ESSENTIALLY OF THE FOLLOWING CONSTITUENTS IN SUBSTANTIALLY THE FOLLOWING PROPORTIONS, BY VOLUME: 0.11% OF THE WATER-SOLUBLE CONDENSATION PRODUCT OF PDIAZO DIPHENYLAMINE AND FORMALDEHYDE, 0.94% OF SOLUBLE SUPERPOLYAMIDE NYLON RESIN, 0.01% OF NON-IONIC SURFACE ACTIVE AGENT (100%), 17 TO 20% OF WATER, 76.35% OF DENATURED ETHYL ALCOHOL, 1 TO 8% OF FURFURYL ALCOHOL.
Claim 2
Dependent Claim
59 words
A COATING MATERIAL FOR LITHOGRAPHIC PLATES CONSISTING ESSENTIALLY OF THE FOLLOWING CONSTITUENTS IN SUBSTANTIALLY THE FOLLOWING PROPORTIONS, BY VOLUME: 0.11% OF THE WATER-SOLUBLE CONDENSATION PRODUCT OF PDIAZO DIPHENYLAMINE AND FORMALDEHYDE, 0.94% OF SOLUBLE SUPERPOLYAMIDE NYLON RESIN, 0.01% OF NON-IONIC SURFACE ACTIVE AGENT (100%), 17 TO 20% OF WATER, 76.35% OF DENATURED ETHYL ALCOHOL, 1 TO 8% OF FURFURYL ALCOHOL.
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) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |