Patent Yard Sign in
Expired European patentEurope

Amplification of long nucleic acid sequences by PCR

EP 0669401 B1 · Applicant: F. HOFFMANN-LA ROCHE AG

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 16, 1995 and granted December 19, 2001. A European patent lasts at most 20 years from filing, so its term ended February 16, 2015.
  • 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 16, 2020.
  • 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 16, 1995
PublishedAugust 30, 1995
GrantedDecember 19, 2001
Term endedFebruary 16, 2015
Application numberEP 95102141
Classification (CPC)C12Q1/686

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedFeb 16, 1995PublishedAug 30, 1995Patent grantedDec 19, 2001Term endedFeb 16, 2015

Sources & verification