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Expired European patentEurope

Device for introducing gas

EP 0704237 B1 · Applicant: SCHÜSSLER, Karl-Heinz

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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 July 13, 1995 and granted September 30, 1998. A European patent lasts at most 20 years from filing, so its term ended July 13, 2015.
  • 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 January 13, 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.
FiledJuly 13, 1995
PublishedApril 3, 1996
GrantedSeptember 30, 1998
Term endedJuly 13, 2015
Application numberEP 95110969
Classification (CPC)B01F23/2311 +2 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedJuly 13, 1995PublishedApril 3, 1996Patent grantedSep 30, 1998Term endedJuly 13, 2015

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