Patent Yard Sign in
Expired Canadian patentCanada

Process for amplifying nucleic acid sequences

CA 1237685 A · Owner: F. Hoffmann-La Roche Ag · Inventors: Mullis, Kary B.

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

The present invention is directed to a process for amplifying any desired specific nucleic acid sequence contained in a nucleic acid or mixture thereof. The process comprises treating separate complementary strands of the nucleic acid with a molar excess of two oligonucleotide primers, extending the primers to form complementary primer extension products which act as templates for synthesizing the desired nucleic acid sequence. The steps of the reaction may be carried out stops or simultaneously and can be repeated as often as desired.

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

  • Granted June 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 27, 1986
GrantedJune 7, 1988
Term endedJune 7, 2005
Patent numberCA 1237685 A
Classification (IPC)C12N15/00 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedMarch 27, 1986Patent grantedJune 7, 1988Term endedJune 7, 2005

Sources & verification

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