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Expired European patentEurope

Electronic controller of hydraulic pressure for journal loading of bowl mill

EP 0048787 B1 · Applicant: COMBUSTION ENGINEERING, INC.

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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 12, 1981 and granted November 21, 1985. A European patent lasts at most 20 years from filing, so its term ended March 12, 2001.
  • 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 12, 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.
FiledMarch 12, 1981
PublishedApril 7, 1982
GrantedNovember 21, 1985
Term endedMarch 12, 2001
Application numberEP 81101811
Classification (CPC)B02C25/00 +1 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedMarch 12, 1981PublishedApril 7, 1982Patent grantedNov 21, 1985Term endedMarch 12, 2001

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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