Laser-inscribable coating based on a polymer powder
CA 2424423 A1 · Owner: Scholten, Heinz · Inventors: Schiffer, Thomas; Christoph, Wolfgang; Waterkamp, Paul-Ludwig
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a polymer powder for coating a metallic substrate which comprises a laser light-active compound and a thermoplastic polymer base. A coating film or layer formed on a surface of the metallic substrate can be inscribed by means of laser light to provide information. The polymer powder may be coated on the metallic substrate by a simple and quick method, e.g. a fluidized-bed sintering method.
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 April 3, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 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.