Patent US3560345A successfully refreshed from Google Patents.
US3560345A
Expired / Lapsed
US
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Process for producing bacterial isoamylase
Assignee: Nagase Viita Co Ltd
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Filing: 1968-05-31
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Granted: 1971-02-02
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Expires: 1988-05-31
Abstract
Abstract A CULTURE MEDIUM, WHICH CONTAINS APPROPRIATE SOURCES OF CARBON AND NITROGEN AND MINERAL MATERIALS, IS INOCULATED WITH PSEUDOMONAS AMLYODERAMOSA (ATCC NO. 21,262) AND THE STRAIN IS CULTURED WITH SHAKING AT ABOUT 30*C. AFTER THE CULTURE, THE CULTURE FLUID OBTAINED IS CENTRIFUGED AND COLD ACETONE IS ADDED TO THE SUPERNATANT FLUID TO PRECIPITATE ISOMYLASE. THE ISOAMYLASE PRECIPITATED IS CENTRIFUGALLY COLLECTED AND DRIED IN VACUO TO YIELD THE ISOAMYLASE IN POWDERY FORM.
Inventors
- 👤 Yasuyuki Yokobayashi
- 👤 Kaname Sugimoto
- 👤 Yoshinori Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:43
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/24; C12N9/2402; C12N9/2405; C12N9/2451; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/874
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |