US3733205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzymatic removal of diacetyl from fermented beverages
Assignee: Pfizer Inc
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Filing: 1970-08-07
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Granted: 1973-05-15
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Expires: 1990-08-07
Abstract
Abstract A PROCESS FOR THE ENZYMATIC REMOVAL OF DIACETYL FROM BEER AND ALE BY THE ADDITION OF DIACETYL REDUCTASE AND REDUCED NICOTINAMIDE ADENINE DINUCLEOTIDE OR COMBINATIONS OF WHOLE BREAKERS'' OF BREWER''S YEAST WITH DIACETYL REDUCTASE AND REDUCED NICOTINAMIDE ADENINE DINUCLEOTIDE WHICH HAVE BEEN MICRO-ENCAPSULATED WITH GELATIN OR CALCIUM ALGINATE.
Inventors
- 👤 J Shovers
- 👤 W Sandine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:11
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/0004; C12N9/0006; C12H; C12H1/00; C12H1/003; C12N11/00; C12N11/02; C12N11/04; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2989
Claims Analysis
Total Claims: 0
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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) | 1976-05-14 | 1976-11-13 | 1977-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-14 | 1980-11-13 | 1981-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-14 | 1984-11-13 | 1985-05-15 | $7700.00 | Window Closed / Lapsed |