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European application, no grantEurope

Venturi insulator for use in an electrostatic precipitator

EP 0775527 A1 · Applicant: TRION INC.

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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 September 10, 1993 and never granted as a European patent. Had it been granted, its 20-year term would have ended September 10, 2013.
  • 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 March 10, 2019.
  • 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.
FiledSeptember 10, 1993
PublishedMay 28, 1997
GrantedNever granted
Term endedSeptember 10, 2013
Application numberEP 97200339
Classification (CPC)B03C3/12 +1 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedSep 10, 1993PublishedMay 28, 1997Term endedSep 10, 2013

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.