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Expired European patentEurope

Apparatus and method for reaction boundary suppressor systems

EP 0015299 B1 · Applicant: ATLANTIC RICHFIELD COMPANY

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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 8, 1979 and granted October 20, 1982. A European patent lasts at most 20 years from filing, so its term ended March 8, 1999.
  • 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 8, 2004.
  • 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 8, 1979
PublishedSeptember 17, 1980
GrantedOctober 20, 1982
Term endedMarch 8, 1999
Application numberEP 79100685
Classification (CPC)F16L55/00

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedMarch 8, 1979PublishedSep 17, 1980Patent grantedOct 20, 1982Term endedMarch 8, 1999

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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