US2843525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulin synthetic poly-amino acid complexes
Assignee: Allen and Hanburys Ltd
•
Filing: 1953-01-23
•
Granted: 1958-07-15
•
Expires: 1973-01-23
Abstract
No abstract record available.
Inventors
- 👤 Robinson Frank Arnold
- 👤 Dickinson Walter
- 👤 Petrow Vladimir
- 👤 Wilkinson Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:50
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/575; C07K14/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PROLONGED ACTING INSULIN PREPARATION COMPRISING A COMPLEX OF INSULIN WITH A SYNTHETIC POLY-AMINO ACID, SAID POLY-AMINO ACID HAVING AT LEAST EIGHT AMINO-ACID RESIDUES AND BEING A POLYMER OF AN AMINO ACID SELECTED FROM THE GROUP CONSISTING OF LYSINE, ORNITHINE AND ARGININE.
Claim 2
Dependent Claim
42 words
A PROLONGED ACTING INSULIN PREPARATION COMPRISING A COMPLEX OF INSULIN WITH A SYNTHETIC POLY-AMINO ACID, SAID POLY-AMINO ACID HAVING AT LEAST EIGHT AMINO-ACID RESIDUES AND BEING A POLYMER OF AN AMINO ACID SELECTED FROM THE GROUP CONSISTING OF LYSINE, ORNITHINE AND ARGININE.
References Cited (Backward Citations)
GB518624A
Cited
US2592447A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |