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Expired Canadian patentCanada

Urine drainage bag outlet with barrier against microbial infection

CA 1265406 C · Owner: C.R. Bard, Inc. · Inventors: Lee, Clarence C.

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 urine drainage bag having an outlet tube housing a microcidal tube is disclosed. The microcidal tube is manufactured from polymeric materials capable of absorbing and releasing antimicrobial substances in a controllable sustained time release mechanism, activated upon contact with droplets of urine, thereby preventing the retrograde migration of infectious organisms into the drainage bag.

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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 February 6, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 6, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 11, 1985
GrantedFebruary 6, 1990
Term endedFebruary 6, 2007
Patent numberCA 1265406 C
Classification (IPC)A61F5/44 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedOct 11, 1985Patent grantedFeb 6, 1990Term endedFeb 6, 2007

Sources & verification

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