Patent Yard Sign in
Expired Canadian patentCanada

Synergistic combinations of 2-(thiocyanomethylthio)- benzothiazole with hexahydro-1,3,5-tris(2-hydroxyethyl)-s- triazine in controlling fungal and bacterial growth in aqueous fluids

CA 2117080 C · Owner: Buckman Laboratories International, Inc. · Inventors: Hollis, C. George; Oppong, David

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Synergistic combinations of 2-(Thiocyanomethylthio)benzothiazole and hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine for use in controlling the growth of at least one microorganism such as fungi and bacteria, in aqueous fluids such as metalworking, fluids.

Read the whole patent

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

  • Filed September 2, 1992 and granted January 19, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 2, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 2, 2014.
  • 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 2, 1992
GrantedJanuary 19, 1999
Term endedSeptember 2, 2012
Patent numberCA 2117080 C
Classification (IPC)A01N43/78 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedSep 2, 1992Patent grantedJan 19, 1999Term endedSep 2, 2012

Sources & verification

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