Patent US3678092A successfully refreshed from Google Patents.
US3678092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-hydroxycyclopentyl-alkanoic acids
Assignee: Novartis Corp
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Filing: 1969-02-24
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Granted: 1972-07-18
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Expires: 1989-02-24
Abstract
Abstract 2 Beta -Hydroxyalkenyl-3 Beta -hydroxycyclopentyl-alkanoic acids, e.g. such as those of the formula AND FUNCTIONAL DERIVATIVES THEREOF ARE HYPOTENSIVES.
Inventors
- 👤 Neville Finch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:39
CPC Classifications
C; C07; C07C; C07C405/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
30 words
A compound as claimed in claim 1, and being the 7-(2 Beta -(3 zeta -hydroxy-1-octenyl)-3 Beta -hydroxy-1 Alpha -cyclopentyl)-heptanoic acid, or the ammonium, alkali or alkaline earth metal salts thereof.
Claim 2
Dependent Claim
24 words
A compound as claimed in claim 1 and being the 7-(2 Beta -(3 Beta -hydroxy-1-octenyl)-3 Beta -hydroxy-1 Alpha -cyclopentyl)-heptanoic acid or its methyl ester.
Claim 3
Dependent Claim
24 words
A compound as claimed in claim 1 and being the 7-(2 Beta -(3 Alpha -hydroxy-1-octenyl)-3 Beta -hydroxy-1 Alpha -cyclopentyl)-heptanoic acid or its methyl ester.
References Cited (Backward Citations)
NL6612693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |