Patent Yard Sign in
Expired European patentEurope

Method for production of bearing slabs for sectional false floors, ceilings, roofs or the like

EP 0321748 B1 · Applicant: VAW FLUSSSPAT-CHEMIE GMBH

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Why it's free to use

  • Filed November 30, 1988 and granted February 17, 1993. A European patent lasts at most 20 years from filing, so its term ended November 30, 2008.
  • 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 May 30, 2014.
  • 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.
FiledNovember 30, 1988
PublishedJune 28, 1989
GrantedFebruary 17, 1993
Term endedNovember 30, 2008
Application numberEP 88119968
Classification (CPC)C04B28/16 +2 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedNov 30, 1988PublishedJune 28, 1989Patent grantedFeb 17, 1993Term endedNov 30, 2008

Sources & verification