Patent US3397058A successfully refreshed from Google Patents.
US3397058A
Expired / Lapsed
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Diazotype material
Assignee: Chemische Fabriek L Van Der Grinteen N V
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Filing: 1964-07-14
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Granted: 1968-08-13
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Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Arie Van Loon
- 👤 Ronc Hubertus Wilhelmus Maria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:07
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/54
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
28 words
A ONE-COMPONENT DIAZOTYPE MATERIAL COMPRISING A SUPPORT SENSITIZED WITH A LIGHT-SENSITIVE COMPOSITION CONTAINING, IN THE ABSENCE OF AN AZO COUPLING COMPONENT, A LIGHT-SENSITIVE DIAZO COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
28 words
A ONE-COMPONENT DIAZOTYPE MATERIAL COMPRISING A SUPPORT SENSITIZED WITH A LIGHT-SENSITIVE COMPOSITION CONTAINING, IN THE ABSENCE OF AN AZO COUPLING COMPONENT, A LIGHT-SENSITIVE DIAZO COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
41 words
A PROCESS FOR THE PRODUCTION OF A DIAZOTYPE PRINT WHICH COMPRISES IMAGEWISE EXPOSING TO ACTINIC LIGHT A DIAZOTYPE MATERIAL AS DEFINED IN CLAIM 1 AND DEVELOPING THE EXPOSED MATERIAL BY APPLYING TO IT A FILM OF A LIQUID DEVELOPER CONTAINING PHLOROGLUCINOL.
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) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |