US2767092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light sensitive material for lithographic printing
Assignee: Azoplate Corp
•
Filing: 1952-12-03
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Granted: 1956-10-16
•
Expires: 1972-12-03
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Maximilian Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:55
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
AS A NEW ARTICLE, A POSITIVE WORKING LIGHT SENSITIVE MATERIAL COMPRISING A BASE AND A LIGHT SENSITIVE LAYER COATED ON SAID BASE, SAID LIGHT SENSITIVE LAYER COMPRISING THE WATER INSOLUBLE COMPOUND, A NAPHTHO-QUINONE-(1,2)DIAZIDE-SULFO-ACID ESTER OF A CYCLOHEXYL ALCOHOL.
Claim 2
Dependent Claim
38 words
AS A NEW ARTICLE, A POSITIVE WORKING LIGHT SENSITIVE MATERIAL COMPRISING A BASE AND A LIGHT SENSITIVE LAYER COATED ON SAID BASE, SAID LIGHT SENSITIVE LAYER COMPRISING THE WATER INSOLUBLE COMPOUND, A NAPHTHO-QUINONE-(1,2)DIAZIDE-SULFO-ACID ESTER OF A CYCLOHEXYL ALCOHOL.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |