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Expired Canadian patentCanada

Process to obstruct the attack by viruses

CA 1108463 A · Owner: Chimicasa G.M.B.H. · Inventors: Lembke, Andreas; Wolf, Erich; Deininger, Rolf

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

The invention relates to a method and a preparation for combatting theviruses and bacteriphages to which micro-organisms such as bacteria, fungi, yeasts and algae used in the preparation of foodstuffs by fermentation caseation, and the like, are subject. This is achieved by the addition of terpenes preferably obtained in their natural form from spice plants. The following terpenes are mentioned as being particularly suitable: blackpepper oil, cinnamon-flower oil, cardamum oil linalyl acetate, sinnamic, aldehyde safrol carvone and cis/trans citral.

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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 September 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 1998.
  • 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 26, 1979
GrantedSeptember 8, 1981
Term endedSeptember 8, 1998
Patent numberCA 1108463 A
Classification (IPC)A23C9/12 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedJan 26, 1979Patent grantedSep 8, 1981Term endedSep 8, 1998

Sources & verification

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