US3276961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing human insulin
Assignee: ER Squibb and Sons LLC
•
Filing: 1963-04-08
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Granted: 1966-10-04
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Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 Bodanszky Miklos
- 👤 Fried Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:00
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
61 words
A PROCESS FOR PREPARING HUMAN INSULIN WHICH COMPRISES SUBJECTING AN ANIMAL INSULIN CONTAININGG A C-TERMINAL ALAINEN GROUP IN THE B-CHAIN AND A GROUP CONSISTING OF ASPARAGINE AND ASPARTIC ACID AS THE C-TERMINAL GROUP OF THE A-CHAIN TO THE ACTION OF AN ENZYME SELECTED FROM THE GROUP CONSISTING OF CARBOXYPEPTIDASE AND TRYPSIN IN THE PRESENCE OF THERONINE AND RECOVERING HUMAN INSULIN THEREFROM.
Claim 2
Dependent Claim
61 words
A PROCESS FOR PREPARING HUMAN INSULIN WHICH COMPRISES SUBJECTING AN ANIMAL INSULIN CONTAININGG A C-TERMINAL ALAINEN GROUP IN THE B-CHAIN AND A GROUP CONSISTING OF ASPARAGINE AND ASPARTIC ACID AS THE C-TERMINAL GROUP OF THE A-CHAIN TO THE ACTION OF AN ENZYME SELECTED FROM THE GROUP CONSISTING OF CARBOXYPEPTIDASE AND TRYPSIN IN THE PRESENCE OF THERONINE AND RECOVERING HUMAN INSULIN THEREFROM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |