US4087272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-(3-Trifluoromethylphenoxy)-phenylurea compounds and herbicidal compositions
Assignee: Bayer AG
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Filing: 1976-08-02
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Granted: 1978-05-02
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Expires: 1996-08-02
Abstract
Abstract 4-(3-Trifluoromethylphenoxy)-phenylurea compounds of the formula ##STR1## wherein R is hydrogen or methyl, Exhibit powerful herbicidal properties.
Inventors
- 👤 Lothar Rohe
- 👤 Jurgen Schramm
- 👤 Erich Klauke
- 👤 Ludwig Eue
- 👤 Robert R. Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:14
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/01; C07C37/045; C07C275/00; C07C275/28; C07C275/32; C07C275/34; C07C275/36
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
13 words
4-(-Trifluormethylphenoxy)-phenylurea compound of the formula ##STR14## in which R is hydrogen or methyl.
Claim 2
Dependent Claim
13 words
4-(-Trifluormethylphenoxy)-phenylurea compound of the formula ##STR14## in which R is hydrogen or methyl.
Claim 3
Dependent Claim
9 words
4-(3-Trifluoromethylphenoxy)-phenylurea compound as claimed in claim 1 designated N,N-dimethyl-N'-[4-(3-trifluoromethylphenoxy)-phenyl]-urea.
Claim 4
Dependent Claim
9 words
4-(3-Trifluoromethylphenoxy)-phenylurea compound as claimed in claim 1 designated N-methyl-N'[4-(3-trifluoromethylphenoxy)-phenyl]-urea.
Claim 5
Dependent Claim
20 words
Herbicidal composition comprising a herbicidally acceptable carrier and as an active ingredient a 4-(3-trifluoromethylphenoxy)-phenylurea compound as claimed in claim 1.
Claim 6
Dependent Claim
36 words
Method of combating undesired vegetation which method comprises applying to such vegetation or its habitat, in post-emergence treatment, herbicidally effective amounts of a 4-(3-trifluoromethylphenoxy)-phenylurea compound of the formula ##STR15## in which R is hydrogen or methyl.
Claim 7
Dependent Claim
36 words
Method of combating undesired vegetation which method comprises applying to such vegetation or its habitat, in post-emergence treatment, herbicidally effective amounts of a 4-(3-trifluoromethylphenoxy)-phenylurea compound of the formula ##STR15## in which R is hydrogen or methyl.
Claim 8
Dependent Claim
11 words
Method as claimed in claim 5 wherein said compound is N,N-dimethyl-N'-[4-(3-trifluoromethylphenoxy)-phenyl]-urea.
Claim 9
Dependent Claim
11 words
Method as claimed in claim 5 wherein said compound is N-methyl-N'-[4-(3-trifluoromethylphenoxy)-phenyl]-urea.
Claim 10
Dependent Claim
22 words
Method as claimed in claim 5 wherein said compound is applied in an area of cultivation to selectively combat weeds growing therein.
Claim 11
Dependent Claim
27 words
Method as claimed in claim 5 wherein the active compound is applied to an area of agriculture in an amount of 0.1 to 20 kg per hectare.
Claim 12
Dependent Claim
27 words
Method as claimed in claim 9 wherein the active compound is applied to an area of agriculture in an amount of 0.2 to 15 kg per hectare.
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) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |