US3206316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water dispersible carotenoid preparations and processes thereof
Assignee: F Hoffmann La Roche AG
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Filing: 1961-10-11
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Granted: 1965-09-14
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Expires: 1981-10-11
Abstract
No abstract record available.
Inventors
- 👤 Klaui Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:24
CPC Classifications
C; C07; C07C; C07C403/00; C07C403/24; A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/43; A23L5/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
48 words
WATER DISPERSIBLE CAROTENOID PREPARATIONS COMPRISING A CAROTENOID COLORING AGENT AND A SALT OF A HIGHER FATTY ACID ESTER OF ASCORBIC ACID; SAID HIGHER FATTY ACID HAVING FROM 12 TO 20 CARBON ATOMS, AND SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND AMINO ACID SALTS.
Claim 2
Dependent Claim
48 words
WATER DISPERSIBLE CAROTENOID PREPARATIONS COMPRISING A CAROTENOID COLORING AGENT AND A SALT OF A HIGHER FATTY ACID ESTER OF ASCORBIC ACID; SAID HIGHER FATTY ACID HAVING FROM 12 TO 20 CARBON ATOMS, AND SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND AMINO ACID SALTS.
Claim 3
Dependent Claim
75 words
A PROCESS FOR THE PREPARATION OF WATER DISPERSIBLE CAROTENOID PREPARATIONS COMPRISING THE STEPS OF FORMING A SOLUTION OF A CAROTENOID COLORING AGENT IN AN ORGANIC CAROTENOID SOLVENT TOGETHER WITH A SALT OF A HIGHER FATTY ACID ESTER OF ASCORBIC ACID, AND REMOVING SAID SOLVENT FROM THE RESULTING MIXTURE; SAID HIGHER FATTY ACID HAVING FROM 12 TO 20 CARBON ATOMS, AND SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND AMINO ACID SALTS.
Claim 4
Dependent Claim
75 words
A PROCESS FOR THE PREPARATION OF WATER DISPERSIBLE CAROTENOID PREPARATIONS COMPRISING THE STEPS OF FORMING A SOLUTION OF A CAROTENOID COLORING AGENT IN AN ORGANIC CAROTENOID SOLVENT TOGETHER WITH A SALT OF A HIGHER FATTY ACID ESTER OF ASCORBIC ACID, AND REMOVING SAID SOLVENT FROM THE RESULTING MIXTURE; SAID HIGHER FATTY ACID HAVING FROM 12 TO 20 CARBON ATOMS, AND SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND AMINO ACID SALTS.
References Cited (Backward Citations)
US2628930A
Cited
US2861891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |