Patent US2647854A successfully refreshed from Google Patents.
US2647854A
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Inactivation of enzymes by barium peroxide
Assignee: Wallerstein Co Inc
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Filing: 1949-11-25
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Granted: 1953-08-04
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Expires: 1969-11-25
Abstract
No abstract record available.
Inventors
- 👤 Julius W Pfannmuller
- 👤 Alfons F Noe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:50
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/99
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A METHOD OF INACTIVATING AN AMYLOLYTIC ENZYME WHICH COMPRISES ADDING BARIUM PERIOXIDE TO AN AMYLOLYTIC ENZYME-CONTAINING SUBSTRATE IN AN AMOUNT OF AT LEAST 0.02% BY WEIGHT OF THE SOLIDS IN THE MIXTURE.
Claim 2
Independent Claim
32 words
A METHOD OF INACTIVATING AN AMYLOLYTIC ENZYME WHICH COMPRISES ADDING BARIUM PERIOXIDE TO AN AMYLOLYTIC ENZYME-CONTAINING SUBSTRATE IN AN AMOUNT OF AT LEAST 0.02% BY WEIGHT OF THE SOLIDS IN THE MIXTURE.
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) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |