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US3787473A Expired / Lapsed US ⏱️ 0.0 years remaining

Thioether substituted thiolcarbonates

Assignee: Lever Brothers Co
•
Filing: 1971-12-03
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Granted: 1974-01-22
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Expires: 1991-12-03
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Abstract

Abstract FOODSTUFFS WITH IMPROVED FLAVOR PROPERTIES ARE OBTAINED BY INCORPORATION OF A DIESTER OF MONOTHIOCARBONIC ACID CONTAINING RADICALS CHARACTERISTIC OF A FLAVORING THIOL, A SECONDARY OR TERTIARY ALCOHOL AND CARBONIC ACID. THESE DIESTERS WERE FOUND TO BE EXCELLENT PRECURSORS OF FLAVORING THIOLS, RELEASING THE THIOLS AT A CONTROLLED RATE UNDER MILD CONDITIONS. PARTICULARLY SUITABLE DIESTERS HAVE THE GENERAL FROMULA R1-S-CO-O-R2, IN WHICH R1 REPRESENTS AN OPTIONALLY SUBSTITUTED ALKYL, HOMOOR HETEROCYCLIC RADICAL WHICH CONTAINS 1-10, PREFERABLY 3-7 CARBON ATOMS AND NOT MORE THAN 2 HETERO ATOMS WHICH ARE EITHER OXYGEN OR SULPHUR AND R2 REPRESENTS SECONDARY OR TERTIARY HYDROCARBYL GROUP CONTAINING 3-20 CARBON ATOMS, PREFERABLY AN ALKYL GROUP CONTAINING 3-8 CARBON ATOMS.

Inventors

  • 👤 Der Heijden A Van
  • 👤 L Schutte

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 02:38
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/04; C07D307/18; A; A23; A23L; A23L27/00; A23L27/20; C07C; C07C329/00; C07D307/26; C07D307/30; C07D307/34; C07D307/38; C07D307/56; C07D307/64

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) 1977-01-21 1977-07-23 1978-01-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-01-21 1981-07-23 1982-01-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-01-21 1985-07-23 1986-01-22 $7700.00 Window Closed / Lapsed

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