US2637680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the extraction of insulin as well as enzymes from pancreas
Assignee: Danske Andelsslagteriers Konservesfabrik AMBA
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Filing: 1948-02-24
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Granted: 1953-05-05
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Expires: 1968-02-24
Abstract
No abstract record available.
Inventors
- 👤 Petersen Gustav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:42
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/575; C07K14/62; C07K14/625; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/843; Y10S530/845
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
METHOD FOR THE EXTRACTION OF INSULIN AS WELL AS ENZYMES FROM PANCREAS, WHICH COMPRISES FIRST EXTRACTING THE INSULIN FROM FRESH PANCREAS BY MEANS OF ALCOHOL AT A PH BETWEEN 6 AND 7.0, THE CONCENTRATION AND QUANTITY OF ALCOHOL EMPLOYED BEING SUCH THAT THE PERCENTAGE OF ALCOHOL IN THE MIXTURE PRODUCED WHEN THE AMOUNT OF WATER CONTAINED IN THE GLANDS IS ADDED WILL BE BETWEEN ABOUT 70 TO 80 PER CENT BY WEIGHT, AND THEREAFTER EXTRACTING THE ENZYMES FROM THE INSULINFREE RESIDUES.
Claim 2
Dependent Claim
81 words
METHOD FOR THE EXTRACTION OF INSULIN AS WELL AS ENZYMES FROM PANCREAS, WHICH COMPRISES FIRST EXTRACTING THE INSULIN FROM FRESH PANCREAS BY MEANS OF ALCOHOL AT A PH BETWEEN 6 AND 7.0, THE CONCENTRATION AND QUANTITY OF ALCOHOL EMPLOYED BEING SUCH THAT THE PERCENTAGE OF ALCOHOL IN THE MIXTURE PRODUCED WHEN THE AMOUNT OF WATER CONTAINED IN THE GLANDS IS ADDED WILL BE BETWEEN ABOUT 70 TO 80 PER CENT BY WEIGHT, AND THEREAFTER EXTRACTING THE ENZYMES FROM THE INSULINFREE RESIDUES.
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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |