Method for producing inverse opaline structures
CA 2500327 A1 · Owner: Ruhl, Tilmannn · Inventors: Ruhl, Tilmannn; Winkler, Holger; Spahn, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the use of core-shell particles whose shell forms a , matrix and whose core is essentially solid and has an in essence, monodisperse size distribution. These core-shell particles are used as templates for producing inverse opaline structures. The invention also relates to a method for producing inverse opaline structures while using core-shell particles of this type.
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, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 2, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 2, 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.