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Expired European patentEurope

Process and apparatus for washing insulators

EP 0303605 B1 · Applicant: CANTAMESSA G.F. S.P.A.

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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 1, 1987 and granted January 15, 1992. A European patent lasts at most 20 years from filing, so its term ended April 1, 2007.
  • 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 1, 2012.
  • 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 1, 1987
PublishedFebruary 22, 1989
GrantedJanuary 15, 1992
Term endedApril 1, 2007
Application numberEP 87902478
Classification (CPC)H01B17/52 +1 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedApril 1, 1987PublishedFeb 22, 1989Patent grantedJan 15, 1992Term endedApril 1, 2007

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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