Copper phthalocyanine pigment
CA 2198691 A1 · Owner: Babler, Fridoliln · Inventors: Babler, Fridoliln
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new copper phthalocyanine pigment characterized by masstone and tint reflection spectra is disclosed. The new copper phthalocyanine pigment is especially useful for coloring coating compositions, such as automotive paints and plastics. Also disclosed is a new, process for preparing a conditioned pigment wherein a pigment crude is air jet milled.
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 27, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2019.
- 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.