US3801561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Derivatives of salmon thyrocalcitonin
Assignee: Sandoz AG
•
Filing: 1971-10-27
•
Granted: 1974-04-02
•
Expires: 1991-10-27
Abstract
Abstract THE INVENTION CONCERNS NOVEL POLYPEPTIDES OF THE FORMULA: H-CYS<(-SER-ASN-LEU-SER-THR-CYS(-VAL-LEU-GLY-LYS-LEU-SER- GLN-ASP-LEU-HIS-LYS-LEU-GLN-THR-PHE-PRO-ARG-THR-ASN-THR- GLY-X-GLY-Y-PRO-NH2)-) WHEREIN X IS VALYL AND Y IS ALANYL, OR X IS ALANYL AND Y IS VALYL, AND PHARMACEUTICALLY ACCEPTABLE ACID ADDITION SALTS AND METAL COMPLEXES THEREOF THE COMPOUNDS ARE USEFUL IN LOWERING THE CALCIUM LEVEL OF PLASMA.
Inventors
- 👤 S Guttmann
- 👤 J Pless
- 👤 H Bossert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:54
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/575; C07K14/585; A; A61; A61K; A61K38/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |