US3575984A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-r-3,4-dihydro-4-methyl-4-phenyl-6-chloro-carbostyrils
Assignee: Janssen Pharmaceuticals Inc
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Filing: 1967-03-30
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Granted: 1971-04-20
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Expires: 1987-03-30
Abstract
Abstract THE COMPOUNDS HEREIN ARE 3,4-DIHYDRO-4-METHYL-4PHENYL-6-CHLORO-CARBOSTYRIL DERIVATIVES, USEFUL FOR THEIR VARIOUS PHARMACOLOGICAL ACTIVITIES, SUCH AS ANTI-INFLAMMATORY, HYPOTENSIVE AND CENTRAL NERVOUS SYSTEM DEPRESSANT ACTIVITIES. ALSO INCLUDED HEREIN IS 4''-CHLORO-B-METHYL-CINNAMANILIDE, USEFUL IN THE SYNTHESIS OF THE SUBJECT CARBOSTYRILS.
Inventors
- 👤 Janis Plostnieks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:01
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/20; C07D215/22; C07D215/227
Claims Analysis
Total Claims: 0
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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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |