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Expired European patentEurope

Cell wall loading of never-dried pulp fibers

EP 0484398 B1 · Applicant: THE BOARD OF REGENTS OF THE UNIVERSITY OF WASHINGTON

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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 July 24, 1990 and granted September 21, 1994. A European patent lasts at most 20 years from filing, so its term ended July 24, 2010.
  • 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 January 24, 2016.
  • 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.
FiledJuly 24, 1990
PublishedMay 13, 1992
GrantedSeptember 21, 1994
Term endedJuly 24, 2010
Application numberEP 90911505
Classification (CPC)D21H17/70 +1 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedJuly 24, 1990PublishedMay 13, 1992Patent grantedSep 21, 1994Term endedJuly 24, 2010

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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