US4408076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenoxy unsaturated carboxylic acid esters and derivatives
Assignee: Zoecon Corp
•
Filing: 1981-09-04
•
Granted: 1983-10-04
•
Expires: 2001-09-04
Abstract
Abstract 3-Alkoxy-4-substituted-phenoxy-2,3-unsaturated acid esters and derivatives thereof and the use thereof for the control of weeds.
Inventors
- 👤 Shy-Fuh Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:32
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/20; C07C49/255; C07C45/00; C07C45/51
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
45 words
A compound of the formula ##STR26## wherein W is oxygen, R 1 is hydrogen or lower alkyl and each of X and Y is independently selected from hydrogen, bromo, chloro, fluoro, lower alkyl, lower alkoxy, lower alkoxycarbonyl, nitro, cyano, trifluoromethyl, chlorodifluoromethyl, fluoromethyl, chloromethyl and difluoromethoxy.
Claim 2
Dependent Claim
45 words
A compound of the formula ##STR26## wherein W is oxygen, R 1 is hydrogen or lower alkyl and each of X and Y is independently selected from hydrogen, bromo, chloro, fluoro, lower alkyl, lower alkoxy, lower alkoxycarbonyl, nitro, cyano, trifluoromethyl, chlorodifluoromethyl, fluoromethyl, chloromethyl and difluoromethoxy.
Claim 3
Dependent Claim
24 words
A compound according to claim 1 wherein R 1 is methyl and X is hydrogen, chloro or nitro and Y is trifluoromethyl or chloro.
Claim 4
Dependent Claim
12 words
A compound according to claim 2 wherein X is hydrogen or chloro.
Claim 5
Dependent Claim
8 words
The compound, 4-[4-(4-trifluoromethyl phenoxy)phenoxy]-3-oxo-1-pentene, according to claim 1.
Claim 6
Dependent Claim
7 words
The compound, 4-[4-(2-chloro-4-trifluoromethylphenoxy)phenoxy]-3-oxo-1-pentene, according to claim 1.
References Cited (Backward Citations)
DE2304962A1
Cited
US4123556A
Cited
US3869515A
Cited
US4061683A
Cited
DE2516515A1
Cited
US4058627A
Cited
DE2531643C3
Cited
US4163661A
Cited
GB1550574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |