US3247181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polypeptide derivatives and esters thereof
Assignee: BASF Corp
•
Filing: 1961-08-28
•
Granted: 1966-04-19
•
Expires: 1981-08-28
Abstract
No abstract record available.
Inventors
- 👤 Schwyzer Robert
- 👤 Kappeler Heini
- 👤 Riniker Bernhard
- 👤 Rittel Werner
- 👤 Sieber Peter
- 👤 Zuber Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:01
CPC Classifications
C; C07; C07K; C07K7/00; C07K7/04; C07K7/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
6 words
TERTIARY BUTYLOXYCARBONYL-L-PHENYLANANYL-O-BENZYLL - SERYL-L-PROYL-L-PHENYLALANYL-NITRO-L-ARGININE BENZYL ESTER.
References Cited (Backward Citations)
US2793204A
Cited
US2854443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |