Patent US2772974A successfully refreshed from Google Patents.
US2772974A
Expired / Lapsed
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Light sensitive diazotype materials
Assignee: GAF Chemicals Corp
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Filing: 1954-02-10
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Granted: 1956-12-04
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Expires: 1974-02-10
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Kosalek
- 👤 Jr John Sulich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:39
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/61
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A LIGHT SENSITIVE COMPOSITION FOR DIAZOTYPE MATERIALS COMPRISING A COMPATIBLE AQUEOUS DISPERSION OF A LIGHT SENSITIVE DIAZONIUM COMPOUND, COUPLING COMPONENT, A POLYMERIC BINDER MATERIAL SELECTED FROM THE CLASS CONSISTING OF WATER SOLUBLE TO WATER DISPERSIBLE STARCHES AND WATER SOLUBLE POLYVINYL COMPOUNDS AND FINELY DIVIDED ALUMINA.
Claim 2
Dependent Claim
45 words
A LIGHT SENSITIVE COMPOSITION FOR DIAZOTYPE MATERIALS COMPRISING A COMPATIBLE AQUEOUS DISPERSION OF A LIGHT SENSITIVE DIAZONIUM COMPOUND, COUPLING COMPONENT, A POLYMERIC BINDER MATERIAL SELECTED FROM THE CLASS CONSISTING OF WATER SOLUBLE TO WATER DISPERSIBLE STARCHES AND WATER SOLUBLE POLYVINYL COMPOUNDS AND FINELY DIVIDED ALUMINA.
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) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |