Patent Yard Sign in
Expired European patentEurope

Apparatus for pressing a concrete pipe in an underlying socket by centrifugal force

EP 0015469 B1 · Applicant: GEORG FISCHER AKTIENGESELLSCHAFT

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 February 25, 1980 and granted May 12, 1982. A European patent lasts at most 20 years from filing, so its term ended February 25, 2000.
  • 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 August 25, 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.
FiledFebruary 25, 1980
PublishedSeptember 17, 1980
GrantedMay 12, 1982
Term endedFebruary 25, 2000
Application numberEP 80100911
Classification (CPC)B28B21/24

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedFeb 25, 1980PublishedSep 17, 1980Patent grantedMay 12, 1982Term endedFeb 25, 2000

Sources & verification