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Expired European patentEurope

Process and automatic device for cleaning objects with a liquid cleaning agent

EP 0286658 B1 · Applicant: Frohn, Walter Dr.-Ing.

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Overview

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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 October 9, 1987 and granted July 10, 1991. A European patent lasts at most 20 years from filing, so its term ended October 9, 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 April 9, 2013.
  • 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.
FiledOctober 9, 1987
PublishedOctober 19, 1988
GrantedJuly 10, 1991
Term endedOctober 9, 2007
Application numberEP 87906564
Classification (CPC)B08B3/02 +2 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedOct 9, 1987PublishedOct 19, 1988Patent grantedJuly 10, 1991Term endedOct 9, 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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