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Expired European patentEurope

Method of manufacturing open-celled cleaning bodies for the internal cleaning of tubes of water-cooled tube-type heat exchangers

EP 0242450 B1 · Applicant: GEA Energietechnik GmbH & Co.

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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 April 22, 1986 and granted November 17, 1988. A European patent lasts at most 20 years from filing, so its term ended April 22, 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 October 22, 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.
FiledApril 22, 1986
PublishedOctober 28, 1987
GrantedNovember 17, 1988
Term endedApril 22, 2006
Application numberEP 86200680
Classification (CPC)F28G1/12 +1 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedApril 22, 1986PublishedOct 28, 1987Patent grantedNov 17, 1988Term endedApril 22, 2006

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.