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Expired European patentEurope

Trickle sheet for the packing element of a liquid-gas contact apparatus

EP 0028545 B1 · Applicant: HAMON-SOBELCO S.A.

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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 16, 1980 and granted November 24, 1982. A European patent lasts at most 20 years from filing, so its term ended September 16, 2000.
  • 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 16, 2006.
  • 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 16, 1980
PublishedMay 13, 1981
GrantedNovember 24, 1982
Term endedSeptember 16, 2000
Application numberEP 80401316
Classification (CPC)B01J19/32 +1 more

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedSep 16, 1980PublishedMay 13, 1981Patent grantedNov 24, 1982Term endedSep 16, 2000

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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