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Expired European patentEurope

Process for consolidating coal and/or rock in mines

EP 0008127 B1 · Applicant: Saarbergwerke Aktiengesellschaft

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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 August 13, 1979 and granted April 14, 1982. A European patent lasts at most 20 years from filing, so its term ended August 13, 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 February 13, 2005.
  • 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.
FiledAugust 13, 1979
PublishedFebruary 20, 1980
GrantedApril 14, 1982
Term endedAugust 13, 1999
Application numberEP 79102934
Classification (CPC)E21D9/002

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedAug 13, 1979PublishedFeb 20, 1980Patent grantedApril 14, 1982Term endedAug 13, 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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