US2861891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water dispersible carotenoid compositions and process of making the same
Assignee: F Hoffmann La Roche AG
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Filing: 1956-12-13
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Granted: 1958-11-25
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Expires: 1976-12-13
Abstract
No abstract record available.
Inventors
- 👤 Bauernfeind Jacob Christopher
- 👤 Bunnell Raymond Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:43
CPC Classifications
C; C07; C07C; C07C403/00; C07C403/24; A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/43; A23L5/44; B; B01; B01J; B01J13/00; B01J13/02; B01J13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A PROCESS FOR PRODUCING A DRY, WATER DISPERSIBLE CAROTENOID COLORING COMPOSITION WHICH COMPRISES DISSOLVING A CAROTENOID IN AN EDIBLE OIL WHICH IS LIQUID AT A TEMPERATURE OF ABOUT 20* TO ABOUT 40*C. AND WHICH HAS BEEN HEATED TO A TEMPERATURE OF ABOUT 100* TO ABOUT 160*C., IN AN AMOUNT IN EXCESS OF THE SOLUBILITY AT ROOM TEMPERATURE OF THE CAROTENOID IN THE OIL SO AS TO FORM A SUPERSATURATED SOLUTION OF THE CAROTENOID IN THE OIL, EMULSIFYING WHILE WARM SAID SUPERSATURATED CAROTENOID SOLUTION IN AN AQUEOUS GELABLE COLLOID SOLUTION AND SETTING SAID EMULSION IN DRY, PARTICULATE FORM.
Claim 2
Dependent Claim
97 words
A PROCESS FOR PRODUCING A DRY, WATER DISPERSIBLE CAROTENOID COLORING COMPOSITION WHICH COMPRISES DISSOLVING A CAROTENOID IN AN EDIBLE OIL WHICH IS LIQUID AT A TEMPERATURE OF ABOUT 20* TO ABOUT 40*C. AND WHICH HAS BEEN HEATED TO A TEMPERATURE OF ABOUT 100* TO ABOUT 160*C., IN AN AMOUNT IN EXCESS OF THE SOLUBILITY AT ROOM TEMPERATURE OF THE CAROTENOID IN THE OIL SO AS TO FORM A SUPERSATURATED SOLUTION OF THE CAROTENOID IN THE OIL, EMULSIFYING WHILE WARM SAID SUPERSATURATED CAROTENOID SOLUTION IN AN AQUEOUS GELABLE COLLOID SOLUTION AND SETTING SAID EMULSION IN DRY, PARTICULATE FORM.
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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |