US3795586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of enzymes
Assignee: PMP ACQUISITION Corp A DE CORP
•
Filing: 1972-06-14
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Granted: 1974-03-05
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Expires: 1992-06-14
Abstract
Abstract BACTERIAL AMYLASE BACTERIAL PROTESES AND MIXTURES THEREOF ARE RECOVERED FROM A BACTERIAL WHOLE CULTURE FERMENTATION MEDIUM BY A PROCESS WHICH INVOLVES THE ADDITION OF AN INORGANIC SULFITE, PREFERABLY SODIUM SULFITE, WHICH ENHANCE THE YIELD OF ENZYME AS MASURED BY THE ENZYME ACTIVITY, PRODUCES A WHITER PRODUCT, AND INHIBITS SPOLIAGE OF A CONCENTRATED AQUEOUS SOLUTION OF THE ENZYME.
Inventors
- 👤 J Ziffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:40
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/02; C12N9/00; Y; Y10; Y10S; Y10S435/00; Y10S435/814; Y10S435/816
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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |