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Expired Canadian patentCanada

Co-vaccination using non-o-carbohydrate side-chain gram-negative bacteria preparation

CA 1305667 C · Owner: Oread Pharmaceutical Inc. · Inventors: Nelson, Ralph; Schlink, Gerald

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

A composition for co-injection of an animal against a gram-negative pathogen which comprises an effective dose of a gram-negative type lipopolysaccharide devoid of O-carbohydrate side-chains and a vaccine derived from said pathogen. Methods of co-injection of an animal to protect the animal against gram-negative pathogens are also discussed.

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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 July 28, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 28, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 25, 1987
GrantedJuly 28, 1992
Term endedJuly 28, 2009
Patent numberCA 1305667 C
Classification (IPC)A61K39/11 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMay 25, 1987Patent grantedJuly 28, 1992Term endedJuly 28, 2009

Sources & verification

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