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Expired Canadian patentCanada

Injection device

CA 1265963 C · Owner: Institute For Industrial Research And Standards · Inventors: Duffy, George Joseph

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 device for storing a discrete quantity of liquid for use with a medical syringe for a bolus injection. The device comprises a body member having a core member covered by a cylindrical sleeve of clear plastics material. A liquid passageway for storing a radionuclide for the bolus injection is formed by a helical groove around the core member. Female and male connecting members at opposite ends of the body member connect the device to a syringe and needle respectively.

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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 20, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 20, 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.
FiledFebruary 27, 1985
GrantedFebruary 20, 1990
Term endedFebruary 20, 2007
Patent numberCA 1265963 C
Classification (IPC)A61M5/00 +2 more

Timeline

Timeline From CIPO dates

19861989199219951998200120042007Application filedFeb 27, 1985Patent grantedFeb 20, 1990Term endedFeb 20, 2007

Sources & verification

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