Patent Yard Sign in
Expired Canadian patentCanada

Casein kinase i-like protein kinase

CA 2132452 C · Owner: Hoekstra, Merl F. · Inventors: Hoekstra, Merl F.

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

Protein kinase mutant and wild-type genes encoding polypeptides of the class heretofore designated "casein kinase I" and useful in screening compositions which may effect DNA double-strand break repair activity are disclosed. Also disclosed are methods using the polynucleotides in cell-proliferative disorders.

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 January 21, 1994 and granted October 21, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 21, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 21, 1994
GrantedOctober 21, 2003
Term endedJanuary 21, 2014
Patent numberCA 2132452 C
Classification (IPC)C12N15/54 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJan 21, 1994Patent grantedOct 21, 2003Term endedJan 21, 2014

Sources & verification

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