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Expired Canadian patentCanada

Endonucleases

CA 2084790 C · Owner: Gene Shears Pty Limited · Inventors: Mccall, Maxine June; Hendry, Philip; Jennings, Philip Anthony

CIPO record

Overview

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

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Abstract From the Canadian patent

This invention provides catalytic molecules capable of cleaving target nucleotide sequences. More specifically the inven-, tion provides an endonuclease of formula (I) wherein X and Y represent nucleotide sequences comprised of deoxyribonucleotides, ribonucleotides, or combinations thereof or derivatives thereof; said nucleotide sequences being of sufficient length to allow hybridization to a target nucleic acid sequence desired to be cleaved by said endonuclease; and wherein M represents a catalytic region of formula (II) where A, G, C and U respectively represent , bases adenine guanine, cytosine and uracil which, may be in the form of deoxyribonucleotides ribonucleotides, or …

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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 June 17, 1991 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 17, 1991
GrantedApril 9, 2002
Term endedJune 17, 2011
Patent numberCA 2084790 C
Classification (IPC)C12N9/16 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJune 17, 1991Patent grantedApril 9, 2002Term endedJune 17, 2011

Sources & verification

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