US3637738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cycloalkano(c)pyrazole ethers
Assignee: BASF Corp
•
Filing: 1969-02-12
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Granted: 1972-01-25
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Expires: 1989-02-12
Abstract
Abstract BASIC 3-ETHERS OF CYCLOALKANO(C)PYRAZOLES, E.G. THOSE OF THE FORMULA 1-R,3-((A)M-H2NCN-X-),4,5-(-CMH2M-)PYRAZOLE R=ARALKYL OR ARYL AM=AN AMINO GROUP X=O OR S M=3-7 N=2-7 ACYL DERIVATIVES, QUATERNARIES AND SALTS THEREOF ARE ANTIDEPRESSANTS.
Inventors
- 👤 Heinz Werner Gschwend
- 👤 Neville Finch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:23
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/54; C07D231/56; C07C; C07C243/00; C07C243/24; C07C243/36; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
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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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |