Expired Canadian patentCanada
Cosmetic compositions comprising water-in-oil emulsion containing pigment
CA 1322725 C · Owner: Lombardi, Lou Ann · Inventors: Tietjen, Marlene; Lombardi, Lou Ann; Hollenberg, Jane
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compositions comprising water-in-oil emulsions are disclosed comprising pigment coated with polysiloxane; a silicone phase; a water phase; and a polydiorganosiloxane-polyoxyalkylene copolymeric surfactant.
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 October 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 5, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 17, 1987
GrantedOctober 5, 1993
Term endedOctober 5, 2010
Patent numberCA 1322725 C
Classification (IPC)A61K8/89 +2 more
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.