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Expired European patentEurope

Process for production of saline-solution soluble xanthan gum

EP 0718311 B1 · Applicant: Shin-Etsu Chemical Co., Ltd.

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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 February 8, 1996 and granted August 16, 2000. A European patent lasts at most 20 years from filing, so its term ended February 8, 2016.
  • 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 August 8, 2021.
  • 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.
FiledFebruary 8, 1996
PublishedJune 26, 1996
GrantedAugust 16, 2000
Term endedFebruary 8, 2016
Application numberEP 96300847
Classification (CPC)C08B37/0033

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedFeb 8, 1996PublishedJune 26, 1996Patent grantedAug 16, 2000Term endedFeb 8, 2016

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