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Patent US3879261A successfully refreshed from Google Patents.
US3879261A
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Process for production of yeast cells from butanols
Assignee: Toray Industries Inc
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Filing: 1974-01-31
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Granted: 1975-04-22
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Expires: 1994-01-31
Abstract
Abstract Method for producing yeast cells by growing a yeast strain in a culture medium containing a normal and/or secondary butanol.
Inventors
- 👤 Shun-Ichi Matsumoto
- 👤 Eiji Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:53
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/32; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/921
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
52 words
A PROCESS FOR PREPARING YEAST CELLS WHICH COMPRISES GROWING AT LEAST ONE YEAST STRAIN BELONGING TO A GENUS SELECTED FROM THE GROUP CONSISTING OF GENERA CANDIDA AND TRICHOSPORON IN A CULTURE MEDIUM CONTAINING AT LEAST ONE BUTANOL SELECTED FROM THE GROUP CONSISTING OF NORMAL AND SECONDARY BUTANOL, AND HARVESTING THE YEAST CELLS.
Claim 2
Dependent Claim
52 words
A PROCESS FOR PREPARING YEAST CELLS WHICH COMPRISES GROWING AT LEAST ONE YEAST STRAIN BELONGING TO A GENUS SELECTED FROM THE GROUP CONSISTING OF GENERA CANDIDA AND TRICHOSPORON IN A CULTURE MEDIUM CONTAINING AT LEAST ONE BUTANOL SELECTED FROM THE GROUP CONSISTING OF NORMAL AND SECONDARY BUTANOL, AND HARVESTING THE YEAST CELLS.
Claim 3
Dependent Claim
52 words
A process for preparing yeast cells which comprises growing at least one yeast strain belonging to a genus selecteD from the group consisting of genera Candida and Trichosporon in a culture medium containing at least one butanol selected from the group consisting of normal and secondary butanol, and harvesting the yeast cells.
Claim 4
Dependent Claim
52 words
A process for preparing yeast cells which comprises growing at least one yeast strain belonging to a genus selecteD from the group consisting of genera Candida and Trichosporon in a culture medium containing at least one butanol selected from the group consisting of normal and secondary butanol, and harvesting the yeast cells.
Claim 5
Dependent Claim
15 words
The process according to claim 1 wherein the yeast strain is FERM-P 1882 (Candida butanophila).
Claim 6
Dependent Claim
15 words
The process according to claim 1 wherein the yeast strain is FERM-P 1883 (Candida butanolytica).
Claim 7
Dependent Claim
15 words
The process according to claim 1 wherein the yeast strain is FERM-P 1884 (Candida butanophila).
Claim 8
Dependent Claim
15 words
The process according to claim 1 wherein the yeast strain is FERM-P 1885 (Trichosporon butanophilum).
Claim 9
Dependent Claim
15 words
The process according to claim 1 wherein the yeast strain is FERM-P 1886 (Trichosporon alcophilum).
Claim 10
Dependent Claim
21 words
The process according to claim 1 wherein the butanol is normal butanol and the yeast strain is FERM-P 1911 (Candida spherica).
Claim 11
Dependent Claim
21 words
The process according to claim 1 wherein the butanol is normal butanol and the yeast strain is FERM-P 1908 (Candida ellipsis).
Claim 12
Dependent Claim
21 words
The process according to claim 1 wherein the butanol is normal butanol and the yeast strain is FERM-P 1909 (Candida splitica).
Claim 13
Dependent Claim
21 words
The process according to claim 1 wherein the butanol is normal butanol and the yeast strain is FERM-P 1910 (Trichosporon opalum).
References Cited (Backward Citations)
GB1210770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-21 | 1978-10-21 | 1979-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-21 | 1982-10-21 | 1983-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-21 | 1986-10-21 | 1987-04-22 | $7700.00 | Window Closed / Lapsed |