Patent US4427438A successfully refreshed from Google Patents.
US4427438A
Expired / Lapsed
US
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N-(2-Fluoro-4-halo-5-substituted phenyl) hydantoins
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1982-05-28
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Granted: 1984-01-24
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Expires: 2002-05-28
Abstract
Abstract A composition comprising an N-(2-fluoro-4-halo-5-substituted phenyl) hydantoin of the formula: <IMAGE> wherein X is a chlorine atom or a bromine atom and R1 and R2 are, same or different, each a C1-C4 alkyl group, a cyclopropyl group, a C3-C4 alkenyl group or a C3-C4 alkynyl group and an inert carrier, which is useful as a herbicide.
Inventors
- 👤 Eiki Nagano
- 👤 Shunichi Hashimoto
- 👤 Ryo Yoshida
- 👤 Hiroshi Matsumoto
- 👤 Katsuzo Kamoshita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:15
CPC Classifications
C; C07; C07C; C07C265/00; C07C265/12; A; A01; A01N; A01N43/00; A01N43/48; A01N43/50; C07C205/00; C07C205/13; C07C205/26; C07C205/39; C07C205/42; C07C205/43; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/72
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
56 words
An N-(2-fluoro-4-halo-5-substituted phenyl)hydantoin of the formula: ##STR26## wherein X is a chlorine atom or a bromine atom and R 1 and R 2 are the same or different, and each is a C 1 -C 4 alkyl group, a cyclopropyl group, a C 3 -C 4 alkenyl group or a C 3 -C 4 alkynyl group.
Claim 2
Dependent Claim
56 words
An N-(2-fluoro-4-halo-5-substituted phenyl)hydantoin of the formula: ##STR26## wherein X is a chlorine atom or a bromine atom and R 1 and R 2 are the same or different, and each is a C 1 -C 4 alkyl group, a cyclopropyl group, a C 3 -C 4 alkenyl group or a C 3 -C 4 alkynyl group.
Claim 3
Dependent Claim
65 words
The N-(2-fluoro-4-halo-5-substituted phenyl)hydantoin according to claim 1, wherein R 1 is a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, a sec-butyl group, an allyl group or a propargyl group and R 2 is a methyl group, an ethyl group, an n-propyl group, an iso-propyl group, a sec-butyl group, a tert-butyl group, a cyclopropyl group, an allyl group or a propargyl group.
Claim 4
Dependent Claim
1 words
3-(4-Chloro-2-fluoro-5-isopropoxyphenyl)-1-isopropylimidazolidine-2,4-dione.
Claim 5
Dependent Claim
1 words
3-(4-Chloro-2-fluoro-5-isopropoxyphenyl)-1-isopropylimidazolidine-2,4-dione.
Claim 6
Dependent Claim
1 words
3-(4-Chloro-2-fluoro-5-isopropoxyphenyl)-1-ethylimidazolidine-2,4-dione.
Claim 7
Dependent Claim
1 words
3-(4-Chloro-2-fluoro-5-isopropoxyphenyl)-1-ethylimidazolidine-2,4-dione.
Claim 8
Dependent Claim
24 words
A herbicidal composition which comprises a herbicidally effective amount of the compound according to claim 1 as an active ingredient and an inert carrier.
Claim 9
Dependent Claim
24 words
A herbicidal composition which comprises as an active ingredient a herbicidally effective amount of a compound according to claim 2 and an inert carrier.
Claim 10
Dependent Claim
24 words
A herbicidal composition which comprises as an active ingredient a herbicidally effective amount of a compound according to claim 3 and an inert carrier.
Claim 11
Dependent Claim
24 words
A herbicidal composition which comprises as an active ingredient a herbicidally effective amount of a compound according to claim 4 and an inert carrier.
Claim 12
Independent Claim
82 words
A method for controlling weeds which comprises applying as an active ingredient a herbicidally effective amount of the compound of the formula: ##STR27## wherein X is a chlorine atom or a bromine atom and R 1 and R 2 are the same or different, and each is a C 1 -C 4 alkyl group, a cyclopropyl group, a C 3 -C 4 alkenyl group or a C 3 -C 4 alkynyl group to the area where the weeds grow or will grow.
Claim 13
Independent Claim
82 words
A method for controlling weeds which comprises applying as an active ingredient a herbicidally effective amount of the compound of the formula: ##STR27## wherein X is a chlorine atom or a bromine atom and R 1 and R 2 are the same or different, and each is a C 1 -C 4 alkyl group, a cyclopropyl group, a C 3 -C 4 alkenyl group or a C 3 -C 4 alkynyl group to the area where the weeds grow or will grow.
Claim 14
Dependent Claim
33 words
A method for controlling weeds which comprises applying as an active ingredient a herbicidally effective amount of the compound according to claim 2 to the area where the weeds grow or will grow.
Claim 15
Dependent Claim
33 words
A method for controlling weeds which comprises applying an an active ingredient a herbicidally effective amount of the compound according to claim 3 to the area where the weeds grow or will grow.
Claim 16
Dependent Claim
33 words
A method for controlling weeds which comprises applying as an active ingredient a herbicidally effective amount of the compound according to claim 4 to the area where the weeds grow or will grow.
References Cited (Backward Citations)
US3134663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-23 | 1987-07-25 | 1988-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-23 | 1991-07-25 | 1992-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-23 | 1995-07-25 | 1996-01-24 | $7700.00 | Window Closed / Lapsed |