US2574889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methylated gelatin-insulin preparation
Assignee: Leo AB
•
Filing: 1948-09-30
•
Granted: 1951-11-13
•
Expires: 1968-09-30
Abstract
No abstract record available.
Inventors
- 👤 Ernst T Rosenberg
- 👤 Hogberg Knut Bertil
- 👤 Karl E L Claeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:14
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/575; C07K14/62; A; A61; A61K; A61K38/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
AN INSULIN PREPARATION DISPLAYING PROLONGED INSULIN ACTIVITY COMPRISING INSULIN IN COMBINATION WITH GELATIN ALKYLATED WITH SHORT CHAIN ALKYL GROUPS.
Claim 2
Dependent Claim
19 words
AN INSULIN PREPARATION DISPLAYING PROLONGED INSULIN ACTIVITY COMPRISING INSULIN IN COMBINATION WITH GELATIN ALKYLATED WITH SHORT CHAIN ALKYL GROUPS.
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) | 1954-11-12 | 1955-05-14 | 1955-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-12 | 1959-05-14 | 1959-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-12 | 1963-05-14 | 1963-11-13 | $7700.00 | Window Closed / Lapsed |