Hard, durable nail polish and method of forming
CA 2049633 A1 · Owner: Hokama, Yosh · Inventors: Hokama, Yosh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The method of strengthening a fingernail or toenail, that includes cleaning the nail surface; applying onto the fingernail or toenail at least one layer of a nail polish composition consisting of: (1) about 74 weight percent aliphatic urethane acrylate and tripropylene glycol diacrylate, (2) about 10 weight percent trimethylolpropane ethoxylate triacrylate (3), about 10 weight percent methacrylic acid (4) about 5, weight percent 1-hydroxycyclohexylphenyl ketone (5)between .5 and 1.5 weight percent butyl acetate; and subjecting the layer or layers to ultraviolet radiation treatment to cure the layer, the radiation treating including applying between .50 and 1.50 milliwatts per square …
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 August 21, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2013.
- 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.