Patent US2943943A successfully refreshed from Google Patents.
US2943943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing solution for coloring citrus fruits and method of dyeing citrus fruits
Assignee: Individual
•
Filing: 1957-07-10
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Granted: 1960-07-05
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Expires: 1977-07-10
Abstract
No abstract record available.
Inventors
- 👤 Herman J Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:40
CPC Classifications
A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/43; A23L5/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD OF DYEING CITRUS FRUITS IN THE YELLOW TO ORANGE RANGE WITH AN OIL SOLUBLE DYE WHICH COMPRISES DISSOLVING AN ANNATTO DERIVATIVE IN A HYDROCARBON SOLVENT, OLEIC ACID AND AN AMINE IN WHICH THE AMINE IS PRESENT IN ABOUT AT LEAST EQUAL AMOUNTS IN RELATION TO THE OLEIC ACID, EMULSIFYING THE MIXTURE WITH WATER, MAINTAINING THE MIXTURE AT A PH BETWEEN NEUTRALITY AND 13, AND APPLYING THE EMULSION TO THE SKIN OF CITRUS FRUIT TO DYE THE SAME.
Claim 2
Independent Claim
79 words
A METHOD OF DYEING CITRUS FRUITS IN THE YELLOW TO ORANGE RANGE WITH AN OIL SOLUBLE DYE WHICH COMPRISES DISSOLVING AN ANNATTO DERIVATIVE IN A HYDROCARBON SOLVENT, OLEIC ACID AND AN AMINE IN WHICH THE AMINE IS PRESENT IN ABOUT AT LEAST EQUAL AMOUNTS IN RELATION TO THE OLEIC ACID, EMULSIFYING THE MIXTURE WITH WATER, MAINTAINING THE MIXTURE AT A PH BETWEEN NEUTRALITY AND 13, AND APPLYING THE EMULSION TO THE SKIN OF CITRUS FRUIT TO DYE THE SAME.
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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |