Patent US4075190A successfully refreshed from Google Patents.
US4075190A
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Pentapeptide with morphine-like activity
Assignee: Wyeth LLC
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Filing: 1977-03-14
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Granted: 1978-02-21
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Expires: 1997-03-14
Abstract
Abstract The pentapeptide: H-Tyr-Gly-Gly-Phe-D-Lys-OH, or a non-toxic salt thereof, exerts an analgesic effect in rats by injection into the lateral brain ventricle.
Inventors
- 👤 Dimitrios Sarantakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:36
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/665; C07K14/70; C07K14/702; A; A61; A61K; A61K38/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A pentapeptide of the formula: H-Tyr-Gly-Gly-Phe-D-Lys-OH or a non-toxic salt thereof.
Claim 2
Dependent Claim
11 words
A pentapeptide of the formula: H-Tyr-Gly-Gly-Phe-D-Lys-OH or a non-toxic salt thereof.
References Cited (Backward Citations)
US4028319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |