US2524658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for working up the pancreas of mammals
Assignee: Novo Terapeutisk Laboratorium AS
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Filing: 1946-10-23
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Granted: 1950-10-03
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Expires: 1966-10-23
Abstract
No abstract record available.
Inventors
- 👤 Frederiksen Svend Emil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:43
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
72 words
METHOD IN RECOVERING ENZYMES AND INSULIN FROM PANCREAS GLANDS OF MANNALS WHICH COMPRISES TREATING THE FINELY DIVIDED GLANDS WITH AN ACID-REACTING AQUEOUS MEDIUM AT A PH VALVE ABOVE 1 AND A TEMPERATURE IN THE RANGE OF 0*C. TO 25*C. FOR A PERIOD OF TIME LESS THAN 24 HOURS, SEPARATING THE LIQUID FROM THE GLAND MATERIAL RECOVERING TRYPSIN AND OTHER ENZYMES FROM THE SAID LIQUID, AND RECOVERING INSULIN FROM THE RESIDUAL GLAND MATERIAL.
Claim 2
Dependent Claim
72 words
METHOD IN RECOVERING ENZYMES AND INSULIN FROM PANCREAS GLANDS OF MANNALS WHICH COMPRISES TREATING THE FINELY DIVIDED GLANDS WITH AN ACID-REACTING AQUEOUS MEDIUM AT A PH VALVE ABOVE 1 AND A TEMPERATURE IN THE RANGE OF 0*C. TO 25*C. FOR A PERIOD OF TIME LESS THAN 24 HOURS, SEPARATING THE LIQUID FROM THE GLAND MATERIAL RECOVERING TRYPSIN AND OTHER ENZYMES FROM THE SAID LIQUID, AND RECOVERING INSULIN FROM THE RESIDUAL GLAND MATERIAL.
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) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |