Process for producing cosmetic cards packed with powdery solid cosmetics
CA 1330331 C · Owner: Nozue, Toshinobu · Inventors: Tanaka, Yumio; Nozue, Toshinobu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cosmetic sheets packed with solid cosmetics are produced by providing a sheet of card-like synthetic high polymer or a metal, having a plurality of recesses, each of 0.1 mm to 3 mm depth mixing, together a powdered cosmetic material with 10% to 30% by weight of binders, mixing in a volatile solvent to cause the mixture to be in a fluidised state substantially filling the recesses with the fluidised mixture and evaporating the solvent to dryness. The process of the invention enables one to produce very thin cosmetic cards packed with powdered cosmetic material.
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
- Granted June 21, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 21, 2011.
- 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.