Patent Yard Sign in
Expired Canadian patentCanada

Skin moisturizing microemulsions

CA 1293453 C · Owner: York, Thomas Olivier · Inventors: York, Thomas Olivier; West, Michael Philbert; Linn, Edwards Eon-Chao

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The present invention provides microemulsions containing moisturizing agents or sunscreens suitable, for cosmetic uses. Also disclosed are methods of moisturizing dry skin using the microemulsions containing moisturizing agents. Further, there are provided methods of potentiating the effects of macroemulsion moisturizing creams and lotions by the prior application of the described microemulsions.

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 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 14, 1986
GrantedDecember 24, 1991
Term endedDecember 24, 2008
Patent numberCA 1293453 C
Classification (IPC)A61K8/06 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedNov 14, 1986Patent grantedDec 24, 1991Term endedDec 24, 2008

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.