Patent US4199508A successfully refreshed from Google Patents.
US4199508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-(5-p-Chlorophenyl-2-furyl)-5-methyl-1,3,4-oxadiazole
Assignee: Warner Chilcott Pharmaceuticals Inc
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Filing: 1979-02-21
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Granted: 1980-04-22
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Expires: 1999-02-21
Abstract
Abstract 2-(5-p-Chlorophenyl-2-furyl)-5-methyl-1,3,4-oxadiazole is useful as an anti-inflammatory agent.
Inventors
- 👤 Chia-Nien Yu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:55
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
The compound 2-(5-p-Chlorophenyl-2-furyl)-5-methyl-1,3,4-oxadiazole.
Claim 2
Dependent Claim
3 words
The compound 2-(5-p-Chlorophenyl-2-furyl)-5-methyl-1,3,4-oxadiazole.
References Cited (Backward Citations)
US4134893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-22 | 1983-10-22 | 1984-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-22 | 1987-10-22 | 1988-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-22 | 1991-10-22 | 1992-04-22 | $7700.00 | Window Closed / Lapsed |