US4264492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enkephalin-like compounds in bovine adrenal medulla
Assignee: Hoffmann La Roche Inc
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Filing: 1979-08-30
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Granted: 1981-04-28
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Expires: 1999-08-30
Abstract
Abstract Enkephalin-like compounds can be extracted from bovine adrenal glands, showing opiate agonist activity and immunoreactive with enkephalin antibodies.
Inventors
- 👤 Stanley Stein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:00
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/665; A; A61; A61K; A61K38/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
The compound Tyr-Gly-Gly-Phe-Met-Arg-Phe essentially free of other endogenous peptides.
Claim 2
Dependent Claim
9 words
The compound Tyr-Gly-Gly-Phe-Met-Arg-Phe essentially free of other endogenous peptides.
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) | 1984-04-27 | 1984-10-27 | 1985-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-27 | 1988-10-27 | 1989-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-27 | 1992-10-27 | 1993-04-28 | $7700.00 | Window Closed / Lapsed |