US2686754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the cultivation of microorganisms
Assignee: Le Bactogene Sarl
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Filing: 1952-02-06
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Granted: 1954-08-17
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Expires: 1972-02-06
Abstract
No abstract record available.
Inventors
- 👤 Monod Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:21
CPC Classifications
C; C12; C12M; C12M27/00; C12M27/10; C12M27/18; C12M27/20; C12M27/24; C12M29/00; C12M29/14; C12M33/00; C12M33/04; C12M37/00; Y; Y10; Y10S; Y10S435/00; Y10S435/802; Y10S435/813
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
AN APPARATUS FOR THE OBTAINMENT OF A MICROORGANISM CULTURE IN LIQUID FORM WHICH COMPRISES, IN COMBINATION, A CYLINDRICAL DRUM OF SUBSTANTIALLY HORIZONTAL AXIS TO CONTAIN THE LIQUID CULTURE IN TREATMENT, AT LEAST ONE OTHER DRUM OPEN AT BOTH ENDS MOUNTED IN SAID FIRST MENTIONED DRUM COAXIALLY THEREWITH, THE FIRST MENTIONED DRUM HAVING END WALLS EXTENDING CONTINUOUSLY, IN THE VERTICAL PLANE OF SAID AXIS, FROM THE LOWEST GENERATRIX OF SAID FIRST MENTIONED DRUM AT A LEVEL HIGHER THAN THE LEVEL OF THE LOWEST GENERATRIX OF THE SECOND MENTIONED DRUM, WHEREBY LIQUID MAY BE KEPT IN THE FIRST MENTIONED DRUM AT A LEVEL SUCH THAT THE SECOND MENTIONED DRUM CONSTANTLY DIPS IN THIS LIQUID, MEANS FOR ROTATING AT LEAST ONE OF SAID DRUMS, MEANS FOR CONTINUOUSLY FEEDING FRESH NUTRIENT MEDIUM INTO SAID FIRST MENTIONED DRUM AT ONE END THEREOF, AND MEANS FOR CONTINUOUSLY REMOVING CULTURE FROM SAID FIRST MENTIONED DRUM AT THE OTHER END THEREOF.
Claim 2
Independent Claim
153 words
AN APPARATUS FOR THE OBTAINMENT OF A MICROORGANISM CULTURE IN LIQUID FORM WHICH COMPRISES, IN COMBINATION, A CYLINDRICAL DRUM OF SUBSTANTIALLY HORIZONTAL AXIS TO CONTAIN THE LIQUID CULTURE IN TREATMENT, AT LEAST ONE OTHER DRUM OPEN AT BOTH ENDS MOUNTED IN SAID FIRST MENTIONED DRUM COAXIALLY THEREWITH, THE FIRST MENTIONED DRUM HAVING END WALLS EXTENDING CONTINUOUSLY, IN THE VERTICAL PLANE OF SAID AXIS, FROM THE LOWEST GENERATRIX OF SAID FIRST MENTIONED DRUM AT A LEVEL HIGHER THAN THE LEVEL OF THE LOWEST GENERATRIX OF THE SECOND MENTIONED DRUM, WHEREBY LIQUID MAY BE KEPT IN THE FIRST MENTIONED DRUM AT A LEVEL SUCH THAT THE SECOND MENTIONED DRUM CONSTANTLY DIPS IN THIS LIQUID, MEANS FOR ROTATING AT LEAST ONE OF SAID DRUMS, MEANS FOR CONTINUOUSLY FEEDING FRESH NUTRIENT MEDIUM INTO SAID FIRST MENTIONED DRUM AT ONE END THEREOF, AND MEANS FOR CONTINUOUSLY REMOVING CULTURE FROM SAID FIRST MENTIONED DRUM AT THE OTHER END THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |