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Expired Canadian patentCanada

Sterile, cold cut connection process, apparatus and system

CA 1308620 C · Owner: Spencer, Dudley Walter Cyril · Inventors: Spencer, Dudley Walter Cyril

CIPO record

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

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Abstract From the Canadian patent

TITLE, Sterile, Cold Cut Connection Process Apparatus and System, ABSTRACT OF THE DISCLOSURE A process, apparatus and system for making a sterile connection between thermoplastic tubes. A section of each tube is flattened and a cutting means is urged through the flattened sections. The tubes are aligned with each other and then the cut tube ends are melted, sterilized, and urged together to form a joint between the tubes for each pair of tube ends to be connected. Each joint is cooled and then subjected to light stress to open the temporary seal in each tube, thereby providing fluid communication therethrough. E-0263

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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 October 13, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 11, 1986
GrantedOctober 13, 1992
Term endedOctober 13, 2009
Patent numberCA 1308620 C
Classification (IPC)A61M25/00

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedMarch 11, 1986Patent grantedOct 13, 1992Term endedOct 13, 2009

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