US3227561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coloring agent containing carotenoid pigment, and preparation of such agent
Assignee: Takeda Pharmaceutical Co Ltd
•
Filing: 1963-02-12
•
Granted: 1966-01-04
•
Expires: 1983-02-12
Abstract
No abstract record available.
Inventors
- 👤 Mima Hiroyuki
- 👤 Terasaki Mamoru
- 👤 Kato Mitsuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:23
CPC Classifications
A; A23; A23L; A23L5/00; A23L5/40; A23L5/42; A23L5/43; A23L5/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
50 words
A METHOD FOR PREPARING A STABLE AND SAFELY UTILIZABLE COLORING AGENT CONTAINING CAROTENOID PIGMENT WHICH COMPRISES DISSOLVING CAROTENOID PIGMENT IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF ABIETIC ACID, HYDROGENETED ABIETIC ACID AND A LOWER ALIPHATIC ALCOHOL ESTER THEREOF, WHILE HEATING TO A TEMPERATURE OF FROM 90 TO 140*C.
Claim 2
Independent Claim
50 words
A METHOD FOR PREPARING A STABLE AND SAFELY UTILIZABLE COLORING AGENT CONTAINING CAROTENOID PIGMENT WHICH COMPRISES DISSOLVING CAROTENOID PIGMENT IN A SOLVENT SELECTED FROM THE GROUP CONSISTING OF ABIETIC ACID, HYDROGENETED ABIETIC ACID AND A LOWER ALIPHATIC ALCOHOL ESTER THEREOF, WHILE HEATING TO A TEMPERATURE OF FROM 90 TO 140*C.
Claim 3
Dependent Claim
32 words
A POWDERY COLORING AGENT CONSISTING ESSENTIALLY OF CAROTENOID PIGMENT, THE SOLVENT SELECTED FROM THE GROUP CONSISTING OF ABIETIC ACID, HYDROGENATED ABIETIC ACID AND A LOWER ALIPHATIC ALCOHOL ESTER THEREOF AND DISPERSING AGENT.
Claim 4
Dependent Claim
32 words
A POWDERY COLORING AGENT CONSISTING ESSENTIALLY OF CAROTENOID PIGMENT, THE SOLVENT SELECTED FROM THE GROUP CONSISTING OF ABIETIC ACID, HYDROGENATED ABIETIC ACID AND A LOWER ALIPHATIC ALCOHOL ESTER THEREOF AND DISPERSING AGENT.
References Cited (Backward Citations)
US2874058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |