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Expired Canadian patentCanada

Ryegrass pollen allergen

CA 1340729 C · Owner: Knox, Robert Bruce · Inventors: Hough, Terryn; Knox, Robert Bruce; Theerakulpisut, Piyada

CIPO record

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Abstract From the Canadian patent

The present invention relates to the major allergenic protein Lol pI from pollen of ryegrass Lolium perenne L. and to derivatives and homologues thereof and to allergenic proteins immunologically related thereto. More particularly, the present invention is directed to recombinant Lol pI, and its derivatives and, to an expression vector capable of directing synthesis of same. Even more particularly, the present invention is directed to cDNA encoding Lol pI and to its promoter and to an expression vector comprising same.

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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

  • Granted September 7, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 7, 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.
FiledMarch 22, 1989
GrantedSeptember 7, 1999
Term endedSeptember 7, 2016
Patent numberCA 1340729 C
Classification (IPC)C12N15/29 +2 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedMarch 22, 1989Patent grantedSep 7, 1999Term endedSep 7, 2016

Sources & verification

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