Luster pigment application methods
CA 2136736 A1 · Owner: Mcdaniel, Harry C. · Inventors: Mcdaniel, Harry C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An application method for luster pigments based on inorganic platelet-like particles with at least one metal oxide surface coating comprises initially applying the pigments to a vitreous surface such as a vitreous enamel on a metal substrate a vitreous glaze , on a ceramic substrate glass, or an overglaze on a glass, enameled metal or glazed ceramic substrate. The vitreous surface is in a fused or unfused state prior to the luster pigment application. The luster pigment is surface applied to the vitreous surface. Next the surface is heated to a temperature and for a time sufficient to fix the luster pigments to the surface.
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 1, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 1, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 1, 2015.
- 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.