US3824151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for aerobic fermentation
Assignee: Hitachi Ltd
•
Filing: 1971-07-07
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Granted: 1974-07-16
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Expires: 1991-07-07
Abstract
Abstract SUPPLY OF OXYGEN TO MICROORGANISMS AND REMOVAL OF THE HEAT OF FERMENTATION IN THE FERMENTATION OF AEROBIC MICROORGANISMS ARE CARRIED OUT BY GAS-LIQUID CONTACT OF A CULTURE MEDIUM DISPERSED IN A DROPLET STATE OR FILM STATE WITH THE AIR, WHEREBY THE OXYGEN CAN BE DISSOLVED INTO THE CULTURE MEDIUM AND AT THE SAME TIME THE HEAT OF FERMENTATION CAN BE REMOVED AS A SENSIBLE HEAT AND LATENT HEAT. COOLING WATER FOR REMOVING THE HEAT OF FERMENTATION CAN BE ALSO SAVED THEREBY, AND TOTAL POWER REQUIREMENT CAN BE REDUCED AT THE SAME TIME.
Inventors
- 👤 T Iijima
- 👤 H Yahagi
- 👤 Y Odawara
- 👤 T Yamaguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:45
CPC Classifications
C; C12; C12M; C12M29/00; C12M29/02; C12F; C12F3/00; C12F3/02; C12F3/04; C12M27/00; C12M27/18; C12M27/22; C12M41/00; C12M41/12; C12M41/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |