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US3637722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogenated-4-hydroxy-6-methyl-2(1h)pyridones
Assignee: Dow Chemical Co
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Filing: 1969-03-17
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Granted: 1972-01-25
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Expires: 1989-03-17
Abstract
Abstract THE INVENTION RELATES TO HALOGENATED-4-HYDROXY-6METHYL-2(UH)PYRIDONES OF THE FORMULA 2-(O=),3,5-DI(Z-),4-(HO-),6-Z''-PYRIDINE WHEREIN EACH Z IS HYDROGEN OR X; X IS CHLORINE, BROMINE OR IODINE; AND Z'' IS -CH3, -CH2X, -CHX2 OR -CX3. THE COMPOUNDS OF THE INVENTION ARE PARTICULARLY USEFUL AS INSECTICIDES AND FUNGICIDES.
Inventors
- 👤 Chun-Shan Wang
- 👤 Thomas W Mcgee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:27
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/69
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) | 1975-01-24 | 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 |