US3941830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted phenoxybenzoic acids and esters thereof
Assignee: Bayer CropScience SA
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Filing: 1973-09-19
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Granted: 1976-03-02
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Expires: 1993-09-19
Abstract
Abstract 2-Nitro-5-(substituted-phenoxy)benzoic acids and esters salts, amides, and acyl halides thereof comprise a class of compounds that are highly effective herbicides.
Inventors
- 👤 Robert J. Theissen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:48
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/49; C07C205/57; C07C205/59
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
54 words
A compound having the formula: ##SPC2## wherein X is halogen, C 1 -C 4 alkyl, or NO 2 and at least one X is halogen and another is C 1 -C 4 alkyl or NO 2 ; R is hydroxy or alkoxy of 1 to 5 carbon atoms; and n is 2 to 5.
Claim 2
Dependent Claim
54 words
A compound having the formula: ##SPC2## wherein X is halogen, C 1 -C 4 alkyl, or NO 2 and at least one X is halogen and another is C 1 -C 4 alkyl or NO 2 ; R is hydroxy or alkoxy of 1 to 5 carbon atoms; and n is 2 to 5.
Claim 3
Dependent Claim
11 words
A compound of claim 1, wherein said compound is methyl 2-nitro-5-(2',4'-dichloro-6'-methylphenoxy)benzoate.
Claim 4
Dependent Claim
11 words
A compound of claim 1, wherein said compound is methyl 2-nitro-5-(4'-chloro-2'-methylphenoxy)benzoate.
Claim 5
Dependent Claim
11 words
A compound of claim 1, wherein said compound is methyl 2-nitro-5-(2'-chloro-4'-nitrophenoxy)benzoate.
Claim 6
Dependent Claim
11 words
A compound of claim 1, wherein said compound is 2-nitro-5-(2'-chloro-4'-nitrophenoxy)benzoic acid.
References Cited (Backward Citations)
US3798276A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |