Nail bleach
CA 2280815 A1 · Owner: Giat Fleissman, Leona · Inventors: Vakirtzis, Anna Maria; Giat Fleissman, Leona; Pahlck, Harold E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cosmetic composition for treating nails including from about 0.01 weight , percent to about 10.0 weight percent stabilized hydrogen peroxide; a pH adjusting agent in an amount sufficient to maintain said cosmetic composition at a pH of from about 8.0 to about 8.5; and water.
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 11, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2020.
- 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.