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Expired European patentEurope

Apparatus for contacting a liquid with a gas

EP 0092262 B1 · Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

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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 March 22, 1983 and granted June 25, 1986. A European patent lasts at most 20 years from filing, so its term ended March 22, 2003.
  • 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 September 22, 2008.
  • 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.
FiledMarch 22, 1983
PublishedOctober 26, 1983
GrantedJune 25, 1986
Term endedMarch 22, 2003
Application numberEP 83200402
Classification (CPC)B01J19/32 +1 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedMarch 22, 1983PublishedOct 26, 1983Patent grantedJune 25, 1986Term endedMarch 22, 2003

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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