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Expired Canadian patentCanada

Wash-off-resistant skin preparation

CA 1330948 C · Owner: Tubesing, David Richard · Inventors: Tubesing, David Richard; Truax, Maxine Lee

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Wash-Off Resistant Skin Preparation, Abstract A skin preparation such as a skin lotion or cream which is resistant to being removed when the skin is washed includes a skin-preparation base and a plurality of wash-offresistance substantivity agents. The wash-off-resistance substantivity agents include a polymeric skin-feel-modifying compound, a quaternary ammonium compound a hydrophobic, modified starch, a substantive silicone and a substantive emollient.

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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 July 26, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 26, 2011.
  • 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 25, 1988
GrantedJuly 26, 1994
Term endedJuly 26, 2011
Patent numberCA 1330948 C
Classification (IPC)A61K8/89 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedNov 25, 1988Patent grantedJuly 26, 1994Term endedJuly 26, 2011

Sources & verification

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