Coating material, related production method and use
CA 2493394 A1 · Owner: Gebauer, Beate · Inventors: Baumgart, Hubert; Gebauer, Beate; Jurczik, Simone
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a coating material containing: A) at least one type of hydrophobic silicon dioxide nanoparticles and B) at least one type of , hydrophilic silicon dioxide nanoparticles with an inner BET surface area > , 300 m2/g. The invention also concerns a method for producing said material and use thereof.
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 June 30, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2025.
- 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.