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Patent US3632818A successfully refreshed from Google Patents.
US3632818A
Expired / Lapsed
US
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3-amino-4-dihalo pyrazolones
Assignee: Sanofi Aventis France
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Filing: 1969-01-02
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Granted: 1972-01-04
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Expires: 1989-01-02
Abstract
Abstract 3-AMINO-4,4-DIHALO-5-PYRAZOLONES OF THE FORMULA 1-Y,3-(R-N(-R1)-),4-X,4-X'',5-(O=)-2-PYRAZOLINE WHEREIN X AND X'' ARE SELECTED FRO THE GROUP CONSISTING OF CHLORINE AND BROMINE, Y IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, CYCLOALKYL, AND ARYL WHICH MAY BE SUBSTITUTED AND R AND R1 ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, ALKYL, ARYL, CYCLOALKYL AND ARALKYL WHICH POSSES; FUNGICIDAL ACTIVITY AND THEIR PREPARATION.
Inventors
- 👤 Andre Allais
- 👤 Pierre Girault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:27
CPC Classifications
C; C07; C07C; C07C243/00; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/44; C07D231/52
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) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |