Patent US2400703A successfully refreshed from Google Patents.
Patent US4083714A successfully refreshed from Google Patents.
US4083714A
Expired / Lapsed
US
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Alkoxyalkyl esters of substituted pyridyloxyphenoxy-2-propanoic acids, herbicidal composition containing the same and method of use thereof
Assignee: Ishihara Sangyo Kaisha Ltd
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Filing: 1977-06-10
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Granted: 1978-04-11
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Expires: 1997-06-10
Abstract
Abstract α-[4-(5-Mono-substituted or 3,5-di-substituted-pyridyl-2-oxy)phenoxy]alkanecarboxylic acids and derivatives thereof useful as a herbicide; a herbicidal composition containing the compound; methods of controlling weeds using such materials and production of such materials.
Inventors
- 👤 Ryohei Takahashi
- 👤 Kanichi Fujikawa
- 👤 Isao Yokomichi
- 👤 Yasuhiro Tsujii
- 👤 Nobuyuki Sakashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:44
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/63; C07D213/64; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B2001/8423; E04B2001/8452
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
58 words
A compound having the general formula (I): ##STR44## wherein X is a halogen atom, Y is a hydrogen atom, a halogen atom or a methyl group, n is an integer of from 1 to 5, and R is a (C 1 -C 4 ) alkyl group in which the alkyl moiety thereof may be straight or branched chain.
Claim 2
Dependent Claim
58 words
A compound having the general formula (I): ##STR44## wherein X is a halogen atom, Y is a hydrogen atom, a halogen atom or a methyl group, n is an integer of from 1 to 5, and R is a (C 1 -C 4 ) alkyl group in which the alkyl moiety thereof may be straight or branched chain.
Claim 3
Dependent Claim
33 words
The compound of claim 1, wherein X is a chlorine atom or a bromine atom, Y is a chlorine atom or a bromine atom, n is 1 and R is an n-butyl group.
Claim 4
Dependent Claim
13 words
The compound of claim 2, wherein said compound is n-butoxyethyl α-[4-(3,5-dichloropyridyl-2-oxy) phenoxy] propionate.
Claim 5
Dependent Claim
12 words
The compound of claim 2, wherein said compound is n-butoxyethyl α-[4-(3,5-dibromopyridyl-2-oxy)phenoxy] propionate.
Claim 6
Dependent Claim
25 words
A herbicidal composition comprising a herbicidally effective amount of the compound as defined in claim 1 as an active ingredient and an agriculturally acceptable adjuvant.
Claim 7
Dependent Claim
38 words
A method for controlling noxious weeds in the presence of cultivated crops, which comprises applying a herbicidally effective amount of the herbicidal composition as defined in claim 5 to an upland area where the cultivated crops are growing.
Claim 8
Dependent Claim
47 words
A method for selectively controlling gramineous weeds in the presence of broad-leaded crops, which comprises applying a herbicidally effective amount of the herbicidal composition as defined in claim 5 to an upland area where the broad-leafed crops are growing, thereby to kill gramineous weeds selectively by withering.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |