Patent US3880823A successfully refreshed from Google Patents.
US3880823A
Expired / Lapsed
US
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Process for preparing peptides using N-hydroxy succinimide mono-and dichloroacetate esters
Assignee: Toyo Jozo KK
•
Filing: 1970-08-24
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Granted: 1975-04-29
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Expires: 1990-08-24
Abstract
Abstract 1. A group of new compounds having a general formula:
Inventors
- 👤 Akira Hagitani
- 👤 Ichiro Muramatsu
- 👤 Shumpei Sakakibara
- 👤 Jinnosuke Abe
- 👤 Tetsuo Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:41
CPC Classifications
C; C07; C07K; C07K5/00; C07K5/04; C07K5/10; C07K5/1002; C07K5/1005; C07K5/1013; C07D; C07D499/00; C07K1/00; C07K1/06; C07K1/08; C07K1/084; C07K5/06; C07K5/06008; C07K5/06017; C07K5/06034; C07K5/06043; Y; Y10; Y10S; Y10S930/00; Y10S930/01; Y10S930/15
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
12 words
A PROCESS FOR THE PRODUCTION OF A DEPTIDE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
12 words
A PROCESS FOR THE PRODUCTION OF A DEPTIDE HAVING THE GENERAL FORMULA:
Claim 3
Dependent Claim
10 words
The process of claim 1, wherein said peptide is oxytocin.
References Cited (Backward Citations)
US3317559A
Cited
US3541084A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |