Colored coating composition in powder form
CA 2280788 A1 · Owner: Aventis Research & Technologies Gmbh & Co. Kg · Inventors: Blatter, Karsten; Simon, 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 a coloured powdery coating mass containing globular , particles with an average particle size < 40 µm of two or more differing , colour matchings wherein at least the particles of one colour matching are coloured and the particles of the other colour matching are colourless. The particles used for mixing have a monomodal particle-size distribution with a span (d90-d10/d50) of 2,5. The powdery coating mass can also be melted into a continuous covering at temperatures of < 200 ~C wherein colour differences in , the hardened coating arising from the differently coloured particles cannot , be distinguished by the human eye. Preferably the average particle size (d50) …
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 11, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2020.
- 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.