US4617274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Biochemical conversions by yeast fermentation at high cell densities
Assignee: Burns Philp Food Inc
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Filing: 1983-09-22
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Granted: 1986-10-14
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Expires: 2003-09-22
Abstract
Abstract Novel yeasts are disclosed including Pichia pastoris NRRL Y-11430, yeasts having the characteristics of Pichia pastoris NRRL Y-11430, mutants of Pichia pastoris NRRL Y-11430, and strains derived therefrom. Also disclosed are methods of culturing the strains, and biochemical conversions employing the strains.
Inventors
- 👤 Eugene H. Wegner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:10
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/14; C12N1/16; C12N1/26; C12N1/28; C12N1/32; Y; Y10; Y10S; Y10S435/00; Y10S435/804; Y10S435/8215; Y10S435/911; Y10S435/938
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
10 words
A biologically pure yeast culture strain Pichia pastoris NRRL Y-11430.
Claim 2
Dependent Claim
10 words
A biologically pure yeast culture strain Pichia pastoris NRRL Y-11430.
Claim 3
Dependent Claim
48 words
A biologically pure culture of yeast strain Pichia pastoris NRRL Y-11430, said culture produced by aerobic fermentation in an aqueous nutrient medium containing assimilable amounts of a carbon source, nitrogen, organic growth factors, and inorganic mineral salts nutrients, wherein said assimilable carbon source is an oxygenated hydrocarbon compound.
Claim 4
Dependent Claim
48 words
A biologically pure culture of yeast strain Pichia pastoris NRRL Y-11430, said culture produced by aerobic fermentation in an aqueous nutrient medium containing assimilable amounts of a carbon source, nitrogen, organic growth factors, and inorganic mineral salts nutrients, wherein said assimilable carbon source is an oxygenated hydrocarbon compound.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |