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Expired Canadian patentCanada

Deletion analogues of magainin peptides

CA 2004991 C · Owner: Houghten, Richard A. · Inventors: Houghten, Richard A.; Cuervo, Julio H.

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Abstract From the Canadian patent

A compound comprising a deletion analogue of an amide or carboxy-terminated Magainin I of the following structural formula using the single letter amino acid code:, G I G K F L H S A G K F G K A F V G E I M K S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 and wherein at least one of amino acid residues 15 through 23 is omitted;, or a deletion analogue of an amide or carboxy-terminated Magainin II of the following structural formula using the single letter amino acid code:, G I G K F L H S A K K F G K A F V G E I M N S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 and wherein at least one of amino acid residues 15 through 23 is omitted. These compounds can be …

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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 December 8, 1989 and granted December 7, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 8, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 8, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 8, 1989
GrantedDecember 7, 1999
Term endedDecember 8, 2009
Patent numberCA 2004991 C
Classification (IPC)C07K14/46 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedDec 8, 1989Patent grantedDec 7, 1999Term endedDec 8, 2009

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