Patent Yard Sign in
Expired Canadian patentCanada

Polynucleotide amplification analysis using a microfabricated device

CA 2134475 C · Owner: The Trustees Of The University Of Pennsylvania · Inventors: Kricka, Larry J.; Wilding, Peter

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Disclosed are devices for amplification a preselected polynycleotide in a sample by conducting a polynucleotide polymerization reaction. The devices comprise a substrate microfabricated to define a sample inlet port (16A) and a mesoscale flow system (20), which extends from the inlet port (16A). The mesoscale flow system (20) includes a polynucleotide polymerization reaction chamber (22) in fluid communication with the inlet port which is provided with reagents required for polymerization and amplification of a preselected polynucleotide. In one embodiment the devices may be utilized to implement a polymerase chain reaction (PCR) in the reaction chamber (PCR chamber). The PCR chamber (22) …

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed April 29, 1993 and granted July 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 29, 1993
GrantedJuly 6, 1999
Term endedApril 29, 2013
Patent numberCA 2134475 C
Classification (IPC)C12M1/40 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedApril 29, 1993Patent grantedJuly 6, 1999Term endedApril 29, 2013

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.