Patent US2865814A successfully refreshed from Google Patents.
US2865814A
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Method of making carotenes and related substances by mixed culture fermentation
Assignee: Individual
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Filing: 1957-02-18
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Granted: 1958-12-23
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Expires: 1977-02-18
Abstract
No abstract record available.
Inventors
- 👤 Clifford W Hesseltine
- 👤 Ralph F Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:50
CPC Classifications
C; C12; C12P; C12P23/00; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A METHOD FOR PRODUCING CAROTENOIDS WHICH COMPRISES CULTIVATING + AND - MATING TYPE STRAINS OF ORGANISMS OF TWO DIFFERENT SPECIES OF THE GENUS CHOANEPHORA TOGETHER IN AN AQUEOUS NITURIENT MEDIUM COMPRISING AN ASSIMILABLE FERMENTABLE CARBOHYDRATE SOURCE, AN ASSIMILABLE NITROGEN SOURCE, A SOURCE OF THIAMIN, ESSENTIAL MINERAL SALTS, AND INCUBATING THE COMBINED CULTURES UNDER SUBMERGED AEROBIC CONDITIONS, THE INITIAL PH OF THE FERMENTATION BEING IN THE RANGE 5.0 TO 6.5 AND THE TEMPERATURE BETWEEN 20* AND 30*C.
Claim 2
Independent Claim
76 words
A METHOD FOR PRODUCING CAROTENOIDS WHICH COMPRISES CULTIVATING + AND - MATING TYPE STRAINS OF ORGANISMS OF TWO DIFFERENT SPECIES OF THE GENUS CHOANEPHORA TOGETHER IN AN AQUEOUS NITURIENT MEDIUM COMPRISING AN ASSIMILABLE FERMENTABLE CARBOHYDRATE SOURCE, AN ASSIMILABLE NITROGEN SOURCE, A SOURCE OF THIAMIN, ESSENTIAL MINERAL SALTS, AND INCUBATING THE COMBINED CULTURES UNDER SUBMERGED AEROBIC CONDITIONS, THE INITIAL PH OF THE FERMENTATION BEING IN THE RANGE 5.0 TO 6.5 AND THE TEMPERATURE BETWEEN 20* AND 30*C.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-22 | 1962-06-23 | 1962-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-22 | 1966-06-23 | 1966-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-22 | 1970-06-23 | 1970-12-23 | $7700.00 | Window Closed / Lapsed |