Patent US2702243A successfully refreshed from Google Patents.
US2702243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive photographic element and process of producing printing plates
Assignee: Azoplate Corp
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Filing: 1951-06-08
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Granted: 1955-02-15
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Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Maximilian Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:30
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/022; G03F7/09; G03F7/095
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AS A NEW ARTICLE OF MANUFACTURE LIGHT SENSITIVE MATERIAL FOR USE IN MAKING PRINTING PLATES COMPRISING A BASE, A LIGHT SENSITIVE BASE LAYER COATED ON SAID BASE COMPSISING A WATER INSOLUBLE DIAZO COMPOUND SELECTED FROM THE GROUP CONSISTING OF AROMATIC SULFONIC ACID ESTERS, AROMATIC SULFONAMIDES, AROMATIC CARBOXYLIC ACID ESTERS AND AROMATIC CARBOXYLIC ACID AMIDES OF ORTHO-QUINONEDIAZIDES OF THE BENZENE AND THE NAPHTHALENE SERIES AND A SECOND LAYER COATED ON SAID BASE LAYER COMPRISING A WATER SOLUBLE ORGANIC COLLOID AND A LIGHT SENSITIVE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE CONDENSATION PRODUCTS OF AMINO DIAZO COMPOUNDS AND AZIDO COMPOUNDS.
Claim 2
Dependent Claim
99 words
AS A NEW ARTICLE OF MANUFACTURE LIGHT SENSITIVE MATERIAL FOR USE IN MAKING PRINTING PLATES COMPRISING A BASE, A LIGHT SENSITIVE BASE LAYER COATED ON SAID BASE COMPSISING A WATER INSOLUBLE DIAZO COMPOUND SELECTED FROM THE GROUP CONSISTING OF AROMATIC SULFONIC ACID ESTERS, AROMATIC SULFONAMIDES, AROMATIC CARBOXYLIC ACID ESTERS AND AROMATIC CARBOXYLIC ACID AMIDES OF ORTHO-QUINONEDIAZIDES OF THE BENZENE AND THE NAPHTHALENE SERIES AND A SECOND LAYER COATED ON SAID BASE LAYER COMPRISING A WATER SOLUBLE ORGANIC COLLOID AND A LIGHT SENSITIVE SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE CONDENSATION PRODUCTS OF AMINO DIAZO COMPOUNDS AND AZIDO COMPOUNDS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |