Self-lather generating shaving composition
CA 1263607 C · Owner: Marra, Dorothea C. · Inventors: Spitzer, J. George; Marra, Dorothea C.; Osipow, Lloyd L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shaving preparation is provided which has a sub-atmospheric vapor pressure at ambient temperature and which generates a lather when applied to the skin. The composition comprises a water-insoluble volatile organic liquid having a vapor pressure substantially below atmospheric pressure an, aqueous soap solution and a surface active agent which together promote the volatilization of the organic liquid thereby, generating a lather as well as reducing the tendency of the volatile organic liquid to cause smarting of the skin. The compositions of this invention are capable of being packaged in a collapsible tube without premature expansion in the tube during storage, shipment and use.
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 December 5, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 5, 2006.
- 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.