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Expired European patentEurope

Sweetening agents which derive from the acides l-aspartic and l-glutamotic-n-hydrocarbonés

EP 0338946 B1 · Applicant: NOFRE, Claude

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed April 14, 1989 and granted July 1, 1992. A European patent lasts at most 20 years from filing, so its term ended April 14, 2009.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by October 14, 2014.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledApril 14, 1989
PublishedOctober 25, 1989
GrantedJuly 1, 1992
Term endedApril 14, 2009
Application numberEP 89420135
Classification (CPC)C07D213/84 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedApril 14, 1989PublishedOct 25, 1989Patent grantedJuly 1, 1992Term endedApril 14, 2009

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