Antibacterial sand
CA 2130366 A1 · Owner: Kabushiki Kaisha Sangi · Inventors: Atsumi, Kiminori; Fujita, Keijiro; Ishizaki, Tsutomu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An antibacterial sand in which individual particles are coated with an antibacterial inorganic material comprising an antibacterial metal or metal ion on an inorganic carrier. Use for a plant pathogenic germ such as Fusarium, Rhizoctonia, Sclerotinia and Pyshium as a pesticide. A coloured or white sand is coated with an antibacterial inorganic material carrying an antibacterial metal or metal ion (Ag, Cu or Zn) on an inorganic carrier at rate of from 0.1 to 50% using a silicon based binder and a curing agent with or without a perfume colouring agent or, animal repellent. The amount of the antibacterial inorganic material used is at least 0.1% with respect to the sand.
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 August 18, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 18, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.