US3832338A
Expired / Lapsed
US
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Orgotein production using a buffer solution containing divalent metal salts
Assignee: GT Biopharma Inc
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Filing: 1973-02-07
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Granted: 1974-08-27
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Expires: 1993-02-07
Abstract
Abstract THE ISOLATION OF ORGOTEIN FROM AN AQUEOUS SOLUTION OF A MIXTURE OF PROTEINS COMPRISING IT IS FACILITATED BY CONDUCTING THE ISOLATION IN AN AQUEOUS SOLUTION CONTAINING A DIVALENT METAL HAVING AN IONIC STRENGTH OF 0.60 TO 1.00 A., PREFERABLY COPPER, ZINC OR BOTH.
Inventors
- 👤 W Huber
- 👤 T Schulte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:35
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/0004; C12N9/0089; A; A61; A61K; A61K38/00; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/843; Y10S530/846
Claims Analysis
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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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |