Expired Canadian patentCanada
Antimicrobial composition
CA 2037314 C · Owner: Hagiwara, Zenji · Inventors: Hagiwara, Zenji; Okubo, Masao
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a novel antibacterial compound and a process for producing it. Futhermore the invention, provides a novel antibacterial polymer composite comprising a polymer and the antimicrobial compositon.
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 February 28, 1991 and granted January 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 28, 1991
GrantedJanuary 11, 2000
Term endedFebruary 28, 2011
Patent numberCA 2037314 C
Classification (IPC)A01N59/16 +2 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.