US3734946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Serine derivatives
Assignee: ER Squibb and Sons LLC
•
Filing: 1969-12-23
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Granted: 1973-05-22
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Expires: 1989-12-23
Abstract
Abstract NOVEL PEPTIDE AMIDES OF THE GENERAL FORMULA R-MET-GLY-TRP-MET-ASP-PHE-NH2 WHEREIN R REPRESENTS L-ASPARTYL-O-SULFATE-L-TYROSYL, LASPARTYL-L-ARGINYL-L-ASPARTYL-O-SULFATE-L-TYROSYL, OR ISOLEUCYL-L-CERYL-L-ASPARTYL-L-ARGINYL-L-ASPARTYL - O-SULFATEL-TYROSYL, AND INTERMEDIATES IN THE PRODUCTION THEREOF. THE PEPTIDE AMIDES OF THIS INVENTION AS WELL AS THE PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF HAVE BEEN FOUND TO POSSESS CHOLECYSTOKININ ACTIVITY.
Inventors
- 👤 M Ondetti
- 👤 J Pluscec
- 👤 J Sheehan
- 👤 J Jorpes
- 👤 V Mutt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:11
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/575; C07K14/595; A; A61; A61K; A61K38/00
Claims Analysis
Total Claims: 0
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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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |