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Expired Canadian patentCanada

Live vaccine for contagious disease of chickens

CA 1292689 C · Owner: Eto, Masanobu · Inventors: Eto, Masanobu; Hanaki, Takuma; Honda, Takashi

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A vaccine for infectious laryngotracheitis which comprises cultured cells infected with attenuated infectious laryngotracheitis virus; and a combined vaccine for infectious laryngotracheitis and Marek's disease, which comprises cultured cells infected with attenuated viruses of these two diseases; these vaccines can be used on day-old (newborn) chickens, by subcutaneous or intramuscular injection, to give them immunity from infection by the virus or viruses.

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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 December 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 16, 1987
GrantedDecember 3, 1991
Term endedDecember 3, 2008
Patent numberCA 1292689 C
Classification (IPC)A61K39/12 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJuly 16, 1987Patent grantedDec 3, 1991Term endedDec 3, 2008

Sources & verification

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