Patent US4641302A successfully refreshed from Google Patents.
Patent US3764481A successfully refreshed from Google Patents.
US3764481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the prevention of explosions in fermentation reactions involving burnable components
Assignee: Chemap AG
•
Filing: 1970-09-04
•
Granted: 1973-10-09
•
Expires: 1990-09-04
Abstract
Abstract IN FERMENTATION REACTIONS IN WHICH BURNABLE COMPOUNDS ARE USED AS THE SOURCE OF CARBON, THE POSSIBILITY OF EXPLOSION IN PRESENT SINCE OXYGEN-CONTAINING GASES MUST ALSO BE INTRODUCED. EMULSIFICATION OF THE ENTIRE CONTENTS OF THE REACTION VESSEL ELIMINATES THE DANGER OF EXPLOSION WITHIN THE VESSEL. ON LEAVING THE VESSEL, THE EMULSION MAY BE BROKEN EITHER BY MECHANICAL OR CHEMICAL MEANS. AT THIS POINT A GAS WHICH DOES NOT SUPPORT COMBUSTION MAY BE ADDED TO DILUTE THE GASEOUS MIXTURE RELEASED FROM THE EMULSION AND THEREBY ELIMATE THE DANGER OF EXPLOSION EXTERNAL TO THE REACTION VESSEL.
Inventors
- 👤 H Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:00
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/26; C12N1/28; C12N1/30; Y; Y10; Y10S; Y10S435/00; Y10S435/812; Y10S435/818
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |