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EP 0202722 B1 · Applicant: S.A. AQUACOM

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Overview

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

Read the whole patent

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 May 23, 1986 and granted November 27, 1991. A European patent lasts at most 20 years from filing, so its term ended May 23, 2006.
  • 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 November 23, 2011.
  • 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.
FiledMay 23, 1986
PublishedNovember 26, 1986
GrantedNovember 27, 1991
Term endedMay 23, 2006
Application numberEP 86200899
Classification (CPC)G01F15/07 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedMay 23, 1986PublishedNov 26, 1986Patent grantedNov 27, 1991Term endedMay 23, 2006

Sources & verification