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Expired Canadian patentCanada

Compositions and treatments for pneumonia in animals

CA 2014033 C · Owner: University Of Saskatchewan · Inventors: Lawman, Michael J.P.; Potter, Andrew A.; Acres, Stephen D.

CIPO record

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

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Abstract From the Canadian patent

New proteins and subunit antigens from P. haemolytica for use in stimulating immunity against respiratory diseases such as pneumonia including shipping, fever pneumonia, are disclosed. The subunit antigens include immunogenic amino acid sequences of P. haemolytica fimbrial protein, P. haemolytica plasmin receptor protein and P. haemolytica 50K outer membrane protein and P. haemolytica leukotoxin. The antigens can be used in a vaccine composition, either alone or in combination. Also disclosed are methods of vaccination as well as methods of making the subunit antigens employed in the vaccines.

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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 April 6, 1990 and granted February 9, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 6, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 6, 1990
GrantedFebruary 9, 1993
Term endedApril 6, 2010
Patent numberCA 2014033 C
Classification (IPC)C12N15/31 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedApril 6, 1990Patent grantedFeb 9, 1993Term endedApril 6, 2010

Sources & verification

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