US3028314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the continuous propagation of filamentous microorganisms
Assignee: Pharmacia and Upjohn Co
•
Filing: 1960-08-31
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Granted: 1962-04-03
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Expires: 1980-08-31
Abstract
No abstract record available.
Inventors
- 👤 Charles W Means
- 👤 George M Savage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:13
CPC Classifications
C; C12; C12M; C12M27/00; C12M27/02; C12M27/06; C12P; C12P33/00; Y; Y10; Y10S; Y10S435/00; Y10S435/813; Y10S435/8215; Y10S435/822; Y10S435/886; Y10S435/896; Y10S435/911; Y10S435/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A PROCESS FOR THE CONTINUOUS PROPAGATION OF FILAMENTOUS MICROORGANISMS WHICH COMPRISES PROPAGATING SAID MICROORGANISMS UNDER AEROBIC CONDITIONS IN AN ELONGATED CYLINDRICAL FERMENTOR WITH ITS LONGIUDINAL AXIS SUBSTANTIALLY IN A HORIZONAL PLANE, AGITATING THE FERMENTATION LIQUOR BY SUBJECTING SAME TO A SHEARING FORCE AT A PLUARLITY OF POSITIONS IN THE FERMENTOR SAID SHEARING FORCE BEING APPLIED IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID FERMENTOR, CONTINUOUSLY INTRODUCING NUTRIENT MEDIUM AT ONE END OF SAID FERMENTOR AND ALLOWING FERMENTATION LIQUOR TO FLOW FROM THE OPPOSITE END OF SAID FERMENTOR SO THAT THE TOTAL VOLUME OF LIQUID IN SAID FERMENTOR REMAINS CONSTANT, THE RATE OF ADDITION OF NUTRIENT MEDIUM BEING ADJUSTED SO THAT THE RATE OF MULTIPLICATION OF THE MICROORGANISMS IS MAINTAINED IN A STEADY STATE.
Claim 2
Dependent Claim
126 words
A PROCESS FOR THE CONTINUOUS PROPAGATION OF FILAMENTOUS MICROORGANISMS WHICH COMPRISES PROPAGATING SAID MICROORGANISMS UNDER AEROBIC CONDITIONS IN AN ELONGATED CYLINDRICAL FERMENTOR WITH ITS LONGIUDINAL AXIS SUBSTANTIALLY IN A HORIZONAL PLANE, AGITATING THE FERMENTATION LIQUOR BY SUBJECTING SAME TO A SHEARING FORCE AT A PLUARLITY OF POSITIONS IN THE FERMENTOR SAID SHEARING FORCE BEING APPLIED IN A PLANE SUBSTANTIALLY PERPENDICULAR TO THE LONGITUDINAL AXIS OF SAID FERMENTOR, CONTINUOUSLY INTRODUCING NUTRIENT MEDIUM AT ONE END OF SAID FERMENTOR AND ALLOWING FERMENTATION LIQUOR TO FLOW FROM THE OPPOSITE END OF SAID FERMENTOR SO THAT THE TOTAL VOLUME OF LIQUID IN SAID FERMENTOR REMAINS CONSTANT, THE RATE OF ADDITION OF NUTRIENT MEDIUM BEING ADJUSTED SO THAT THE RATE OF MULTIPLICATION OF THE MICROORGANISMS IS MAINTAINED IN A STEADY STATE.
References Cited (Backward Citations)
US1750267A
Cited
US2793166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |