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Expired Canadian patentCanada

Skin barrier composition

CA 1190474 A · Owner: Hollister Incorporated · Inventors: Osburn, Frank G.

CIPO record

Overview

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

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Abstract From the Canadian patent

A skin barrier composition is provided which is moisture-absorbing while being resistant to urine and other body fluids and substantially non-swelling. It is composed of a continuous elastomer phase containing particulate hydrocolloid together with fumed silica. The hydrocolloid provides the water-absorbency while the fumed silica controls the swelling. The composition is adapted for ostomy and wound drainage applications, and has especially desirable properties for urostomy and ileostomy use where corrosive drainage is encountered. - 1 -

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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 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 4, 1982
GrantedJuly 16, 1985
Term endedJuly 16, 2002
Patent numberCA 1190474 A
Classification (IPC)A61L28/00

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMay 4, 1982Patent grantedJuly 16, 1985Term endedJuly 16, 2002

Sources & verification

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