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US4448966A Expired / Lapsed US ⏱️ 0.0 years remaining

Substituted 2-pyridyloxyphenoxy-alkanetriones

Assignee: Zoecon Corp
•
Filing: 1982-08-06
•
Granted: 1984-05-15
•
Expires: 2002-08-06
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Abstract

Abstract Substituted phenoxyalkanetriones 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 2026-11-09 02:48
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/62; C07D213/63; C07D213/64; C07D213/643; A; A01; A01N; A01N35/00; A01N35/02; A01N43/00; A01N43/34; A01N43/40; A01N43/42; A01N43/48; A01N43/50; A01N43/52; A01N43/60; A01N43/72; A01N43/74; A01N43/76; A01N43/78; C07C; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/38; C07C45/00; C07C45/45; C07C45/455; C07C49/00; C07C49/20; C07C49/255; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07D213/70; C07D241/00; C07D241/36; C07D241/38; C07D241/40; C07D241/44; C07D263/00; C07D263/52; C07D263/54; C07D263/58

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 57 words
A compound of the following formula (A): ##STR10## wherein, R is ##STR11## R 1 is hydrogen or lower alkyl; R 2 is lower alkyl; R 3 is lower alkyl; W is oxygen, sulfur or amino; and each of Y and Z is independently selected from hydrogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, halogen, and nitro.
Claim 2
Dependent Claim 57 words
A compound of the following formula (A): ##STR10## wherein, R is ##STR11## R 1 is hydrogen or lower alkyl; R 2 is lower alkyl; R 3 is lower alkyl; W is oxygen, sulfur or amino; and each of Y and Z is independently selected from hydrogen, lower alkyl, lower haloalkyl, lower alkoxy, lower haloalkoxy, halogen, and nitro.
Claim 3
Dependent Claim 11 words
A compound of the following formula, according to claim 1: ##STR12##
Claim 4
Dependent Claim 27 words
A compound according to claim 2 wherein W is oxygen, R 1 is methyl, R 2 is methyl or ethyl and R 3 is methyl or ethyl.
Claim 5
Dependent Claim 18 words
A compound according to claim 3 wherein Y is hydrogen or chloro and Z is chloro or trifluoromethyl.
Claim 6
Dependent Claim 7 words
The compound 3-acetyl-5-[4-(5-trifluoromethyl-2-pyridyloxy)phenoxy]-2,4-hexanedione, according to claim 4.
Claim 7
Dependent Claim 8 words
The compound of 3-acetyl-5-[4-(3-chloro-5-trifluoromethyl-2-pyridyloxy)phenoxy]-2,4-hexanedione, according to claim 4.

References Cited (Backward Citations)

US4133675A Cited
US4348221A Cited
US4216007A Cited
GB2040923A Cited
WO1981000563A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1987-05-15 1987-11-14 1988-05-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1991-05-15 1991-11-14 1992-05-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1995-05-15 1995-11-14 1996-05-15 $7700.00 Window Closed / Lapsed

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