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Expired Canadian patentCanada

Puncture device and puncture needle cartridge

CA 2746792 C · Owner: Phc Holdings Corporation · Inventors: Umebayashi, Nobue; Tsubouchi, Toshiharu

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 puncture device is constituted such that a plunger (2) is provided with a lever (3) which is partially restricted in rotation and a forward urging force is obtained by a contraction restorative force of a tension spring (4) and the tension spring (4) is again expanded with the lever (3) as a leverage when the plunger (2) further moves forward due to its inertia from a position where no urging force is not applied and the plunger (2) is urged backward by a restorative force of the re-expansion. Further a puncture needle cartridge is provided with a lancet body (203) having a puncture needle and a puncture needle holder (201) in which the lancet body (203) is movably stored and further, the …

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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 April 27, 2006 and granted October 13, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 27, 2006
GrantedOctober 13, 2015
Term endedApril 27, 2026
Patent numberCA 2746792 C
Classification (IPC)A61B5/15 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedApril 27, 2006Patent grantedOct 13, 2015Term endedApril 27, 2026

Sources & verification

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