Patent US5057522A successfully refreshed from Google Patents.
US5057522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-hypersensitive N2-tetrazole-β-glucuronide analog
Assignee: Merck and Co Inc
•
Filing: 1990-07-19
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Granted: 1991-10-15
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Expires: 2010-07-19
Abstract
Abstract Fermentation of the microorganism Streptomyces sp. MA6751 in the presence of ##STR1## yields an anti-hypertensive compound of the structure ##STR2##
Inventors
- 👤 Shieh-Shung T. Chen
- 👤 George Doss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:30
CPC Classifications
C; C07; C07D; C07D471/00; C07D471/02; C07D471/04; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/056; C12; C12P; C12P19/00; C12P19/26; C12P19/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
A compound of structural formula (I): ##STR7##
Claim 2
Dependent Claim
7 words
A compound of structural formula (I): ##STR7##
Claim 3
Dependent Claim
21 words
An antihypertensive pharmaceutical composition comprising a non-toxic therapeutically effective amount of the compound of claim 1 and a pharmaceutically acceptable carrier.
Claim 4
Dependent Claim
32 words
A method of treating hypertension of congestive heart failure comprising the administration of a non-toxic therapeutically effective amount of the compound of claim 1 to a subject in need of such treatment.
References Cited (Backward Citations)
US4880804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-14 | 1995-04-15 | 1995-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-14 | 1999-04-15 | 1999-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-14 | 2003-04-15 | 2003-10-15 | $7700.00 | Window Closed / Lapsed |