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Expired Canadian patentCanada

Wound drainage tube/reservoir connector

CA 2047950 C · Owner: Johnson & Johnson Medical, Inc. · Inventors: Broadnax, Cecil Harridell, Jr.

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

A connector that permits safe and convenient attachment of a wound drainage tube to a fluid reservoir includes a hollow penetrator whose one end is attachable to the drainage tube and whose other end is sharpened to permit it to pierce a penetrable plug that initially seals an inlet tube of the reservoir. The penetrator is covered with a stocking that initially prevents fluid from flowing out of the sharpened end. A protective skirt has one end attached to the penetrator. Its other end is open and permits the skirt to surround the inlet tube as the penetrator is moved toward the plug and then pierces the stocking and plug to permit fluid to flow from the drainage tube to the reservoir.

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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

  • Filed July 26, 1991 and granted January 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 26, 1991
GrantedJanuary 8, 2002
Term endedJuly 26, 2011
Patent numberCA 2047950 C
Classification (IPC)A61M39/00 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJuly 26, 1991Patent grantedJan 8, 2002Term 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.