US3652257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorophenoxy-pyridazines as selective herbicides
Assignee: Sankyo Co Ltd
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Filing: 1969-02-24
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Granted: 1972-03-28
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Expires: 1989-02-24
Abstract
Abstract Herbicidal composition which comprises as an active ingredient of a 3-phenoxypyridazine compound having the formula WHEREIN X is hydrogen atom or chlorine atom, R1 is trifluoromethyl group or fluorine atom and R2 is hydrogen atom or chlorine atom, provided that, where X is hydrogen atom, R1 is trifluoromethyl group or fluorine atom and R2 is hydrogen atom or chlorine atom and, where X chlorine atom, R1 is trifluoromethyl group and R2 is hydrogen atom or chlorine atom and an agriculturally-acceptable carrier. Method for inhibiting the growth of undesirable plants which comprises applying to the locus to be protected a herbicidally effective amount of said 3phenoxypyridazine compound.
Inventors
- 👤 Teruomi Jojima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:22
CPC Classifications
C; C07; C07D; C07D237/00; C07D237/02; C07D237/06; C07D237/10; C07D237/14; A; A01; A01N; A01N43/00; A01N43/48; A01N43/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A method for inhibiting the growth of undesirable plants in the presence of carrots which comprises applying to the locus thereof a herbicidally effective amount of 3-(2-fluorophenoxy)-pyridazine.
Claim 2
Independent Claim
27 words
A method for inhibiting the growth of undesirable plants in the presence of spinach which comprises applying to the locus thereof a herbicidally effective amount of 3-(2-fluorophenoxy)-pyridazine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |