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Expired European patentEurope

Tank of prefabricated elements of reinforced concrete for storing liquids and purifying domestic and industrial waste water

EP 0161699 B1 · Applicant: Gianoglio, Francesco

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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.

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Why it's free to use

  • Filed April 11, 1985 and granted October 25, 1989. A European patent lasts at most 20 years from filing, so its term ended April 11, 2005.
  • 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 11, 2010.
  • 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 11, 1985
PublishedNovember 21, 1985
GrantedOctober 25, 1989
Term endedApril 11, 2005
Application numberEP 85200498
Classification (CPC)B65D88/08

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedApril 11, 1985PublishedNov 21, 1985Patent grantedOct 25, 1989Term endedApril 11, 2005

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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