Expired Canadian patentCanada
Synergistic combinations of iodopropargyl compounds with 1,2-benzisothiazolin-3-one in controlling fungal and bacterial growth in aqueous fluids
CA 2123123 C · Owner: Buckman Laboratories International, Inc. · Inventors: Oppong, David
Overview
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Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Synergistic combinations of iodopropargyl compounds and 1,2-benzisothiazolin-3one for use in controlling the growth of at least one microorganism, such as fungi and bacteria in aqueous fluids such , as metalworking fluids.
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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
- Filed September 29, 1992 and granted December 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 29, 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 29, 1992
GrantedDecember 24, 2002
Term endedSeptember 29, 2012
Patent numberCA 2123123 C
Classification (IPC)A01N47/12 +1 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.