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Expired Canadian patentCanada

Ozone inactivated organisms as vaccines

CA 1212320 A · Owner: The Regents Of The University Of California · Inventors: Zee, Yuan C.; Bolton, David C.

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

Ozone inactivated microorganisms are employed as vaccines. The inactivated microorganism retains its morphology so that upon vaccination the vaccine containing the inactivated microorganism produces an effective immunogenic response in the host to provide protection from the live microorganism.

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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 October 7, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 7, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 27, 1983
GrantedOctober 7, 1986
Term endedOctober 7, 2003
Patent numberCA 1212320 A
Classification (IPC)A61K39/00 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedJan 27, 1983Patent grantedOct 7, 1986Term endedOct 7, 2003

Sources & verification

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