Patent US2953422A successfully refreshed from Google Patents.
US2953422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable solution for producing ice colors
Assignee: GAF Chemicals Corp
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Filing: 1956-12-31
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Granted: 1960-09-20
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Expires: 1976-12-31
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Posselt
- 👤 Lester N Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:28
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/02; D06P1/12; D06P1/127
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN AQUEOUS ALKALINE SOLUTION COMPRISING AN ICE COLOR DIAZO COMPOUND SOLUBILIZED AND STABILIZED AGAINST AZOIC COUPLING ON THE ALKALINE SIDE BY REACTION WITH AN ORGANIC AMINE CONTAINING AT LEAST 1 SOLUBILIZING GROUP AND AT LEAST 1 REPLACEABLE HYDROGEN ATOM ATTACHED TO AN AMINO NITROGEN ATOM, AN ICE COLOR COUPLING COMPONENT, AND ABOUT 0.5 TO 5% BY WEIGHT OF A WATER-SOLUBLE POLYMERIC MATERIAL CONTAINING AT LEAST ABOUT 20% BY WEIGHT OF A POLYMERIZED N-VINYL LACTAM HAVING A K VALUE OF ABOUT 10 TO 200 AND CHARACTERIZED BY THE FORMULA
Claim 2
Dependent Claim
88 words
AN AQUEOUS ALKALINE SOLUTION COMPRISING AN ICE COLOR DIAZO COMPOUND SOLUBILIZED AND STABILIZED AGAINST AZOIC COUPLING ON THE ALKALINE SIDE BY REACTION WITH AN ORGANIC AMINE CONTAINING AT LEAST 1 SOLUBILIZING GROUP AND AT LEAST 1 REPLACEABLE HYDROGEN ATOM ATTACHED TO AN AMINO NITROGEN ATOM, AN ICE COLOR COUPLING COMPONENT, AND ABOUT 0.5 TO 5% BY WEIGHT OF A WATER-SOLUBLE POLYMERIC MATERIAL CONTAINING AT LEAST ABOUT 20% BY WEIGHT OF A POLYMERIZED N-VINYL LACTAM HAVING A K VALUE OF ABOUT 10 TO 200 AND CHARACTERIZED BY THE FORMULA
References Cited (Backward Citations)
GB481019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |