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Expired Canadian patentCanada

Biocide material combination and its use in plastics moulding compositions

CA 1193373 A · Owner: Dynamit Nobel Aktiengesellschaft · Inventors: Vohwinkel, Horst; Putz, Peter; Spielau, Paul

CIPO record

Overview

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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 present invention provides a biocide material combination suitable for a plastic said combination being based on one or more organic arsenic compounds and being characterized by the presence of an effective amount of one or more tin compounds as agents to prevent the elution of said arsenic compound from said plastic.

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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 10, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 10, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 30, 1981
GrantedSeptember 10, 1985
Term endedSeptember 10, 2002
Patent numberCA 1193373 A
Classification (IPC)A01N55/04 +2 more

Timeline

Timeline From CIPO dates

1982198519881991199419972000Application filedSep 30, 1981Patent grantedSep 10, 1985Term endedSep 10, 2002

Sources & verification

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