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Expired European patentEurope

Honeycomb type gas separating membrane

EP 1090671 B1 · Applicant: NGK INSULATORS, LTD.

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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 29, 2000 and granted June 23, 2004. A European patent lasts at most 20 years from filing, so its term ended September 29, 2020.
  • 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 29, 2026.
  • 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 29, 2000
PublishedApril 11, 2001
GrantedJune 23, 2004
Term endedSeptember 29, 2020
Application numberEP 00308602
Classification (CPC)B01D69/02 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedSep 29, 2000PublishedApril 11, 2001Patent grantedJune 23, 2004Term endedSep 29, 2020

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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