Patent US3326682A successfully refreshed from Google Patents.
US3326682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color-proofing foils
Assignee: Kalle GmbH and Co KG
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Filing: 1964-11-30
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Granted: 1967-06-20
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Expires: 1984-11-30
Abstract
No abstract record available.
Inventors
- 👤 Endermann Fritz
- 👤 Uhlig Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:28
CPC Classifications
G; G03; G03F; G03F3/00; G03F3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A METHOD OF COLOR PROOFING A COLOR SEPARATION TRANSPARENCY WHICH COMPRISES: (A) PROVIDING A LIGHT-SENSITIVE SHEET COMPRISING: (1) A SUPPORT, AND (2) A LIGHT-SENSITIVE COATING ON SAID SUPPORT COMPRISING AN INTIMATE MIXTURE OF A LIGHT-SSENSITIVE O-NAPHTHOQUINONE DIAZIDE AND AN ALKALI-FAST DYE OF A BASIC COLOR SELECTED FROM THE GROUP OF YELLOW, BLUE AND RED COLORS WHICH MATCH THE PRIMARY COLORS OF PRINTING INKS; (B) EXPOSING SAID SHEET TO ACTINIC LIGHT THROUGH A COLOR SEPARATION ORININAL; (C) CONTACTING THE COATING OF THE SHEET SO EXPOSED WITH A WEALKY ALKALINE AQUEOUS SOLUTION; AND (D) WASHING THE COATING TO REMOVE THE COATED COMPOSITION FROM THE LIGHT-STRUCK AREAS; WHEREBY A COLORED DYE IMAGE OF SAID ORIGINAL REMAINS ON SAID SUPPORT.
Claim 2
Independent Claim
116 words
A METHOD OF COLOR PROOFING A COLOR SEPARATION TRANSPARENCY WHICH COMPRISES: (A) PROVIDING A LIGHT-SENSITIVE SHEET COMPRISING: (1) A SUPPORT, AND (2) A LIGHT-SENSITIVE COATING ON SAID SUPPORT COMPRISING AN INTIMATE MIXTURE OF A LIGHT-SSENSITIVE O-NAPHTHOQUINONE DIAZIDE AND AN ALKALI-FAST DYE OF A BASIC COLOR SELECTED FROM THE GROUP OF YELLOW, BLUE AND RED COLORS WHICH MATCH THE PRIMARY COLORS OF PRINTING INKS; (B) EXPOSING SAID SHEET TO ACTINIC LIGHT THROUGH A COLOR SEPARATION ORININAL; (C) CONTACTING THE COATING OF THE SHEET SO EXPOSED WITH A WEALKY ALKALINE AQUEOUS SOLUTION; AND (D) WASHING THE COATING TO REMOVE THE COATED COMPOSITION FROM THE LIGHT-STRUCK AREAS; WHEREBY A COLORED DYE IMAGE OF SAID ORIGINAL REMAINS ON SAID SUPPORT.
References Cited (Backward Citations)
US3046121A
Cited
US3106465A
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US3180733A
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US2993788A
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US3201239A
Cited
US3211553A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |