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US3833564A Expired / Lapsed US ⏱️ 0.0 years remaining

Novel esters and their preparation

Assignee: Individual
•
Filing: 1972-08-17
•
Granted: 1974-09-03
•
Expires: 1992-08-17
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Abstract

Abstract RACEMATES OF 5-BENZYL-3-FURYL-METHYL ESTERS OF CIS-3,3DIMETHYL - 2-(2''-R1-R2''-R2-VINYL)-CYCLOPROPANE-1-CARBOXYLIC ACIDS OR THEIR 1R,2S OR 1S,2R ISOMERS OF THE FORMULA 3-(R1-C(-R2)=CH-(3,3-DI(H3C-)-CYCLOPROPYLENE)-CO-O-CH2-), 5-BENZYL-FURAN WHEREIN R1 IS SELECTED FROM THE GROUP CONSISTING OF ALKYL OF 1 TO 6 CARBON ATOMS, ARYL AND PHENYLALKYL OF 7 TO 9 CARBON ATOMS AND R2 IS SELECTED FROM THE GROUP CONSISTING OF ALKYL OF 1 TO 6 CARBON ATOMS, ARYL, PHENYLALKYL OF 7 TO 9 CARBON ATOMS AND ALKOXYCARBONYL AND R1 AND R2 TAKEN TOGETHER WITH THE CARBON ATOM TO WHICH THEY ARE ATTACHED FORM A CARBON HOMOCYCLIC OF 3 TO 7 CARBON ATOMS WHICH MAY BE SATURATED OR UNSATURATED OR SUBSTITUTED OR NOT WHICH POSSESS UTILITY IN AGRICULTURE AND IN THE HOME AS INSECTICIDES AND THEIR PREPARATION.

Inventors

  • 👤 J Buendia
  • 👤 J Martel

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 15:22
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/40; C07D307/42

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-09-02 1978-03-04 1978-09-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-09-02 1982-03-04 1982-09-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-09-02 1986-03-04 1986-09-03 $7700.00 Window Closed / Lapsed

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