Shaving compositions containing particulate additives
CA 2202224 C · Owner: Wdowik, Mark S. · Inventors: Wdowik, Mark S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Shaving compositions for use in the personal shaving process with a razor blade assembly include insoluble solid particulate additives. The shaving compositions may include one or more of the following: wetting agents cleansing agents, lather producing, compositions emollients and mixtures thereof; and further includes at least one solid insoluble particulate additive in a well dispersed suspension throughout said shaving composition. The solid additives are present in an effective amount to produce physical microscopic support for the blade of a razor blade assembly during the personal shaving process. By providing micro-support of the razor blade parallel to skin surface and above 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 April 9, 1997 and granted January 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 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.