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Expired Canadian patentCanada

An integrated visualization system

CA 2479841 C · Owner: Ethicon Endo-Surgery, Inc. · Inventors: Dunki-Jacobs, Robert; Speeg, Trevor W. V.; Wampler, Scott D.

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

An endoscope (10) that has an integrated light source (50) and camera (42) mounted at the distal end of the endoscope. The light source is a class of LED devices constructed of high-efficiency LEDs (50) that emit narrow-band blue light coupled with phosphors (51), which cause a nearly natural "white" light to be emitted. The LEDs are coupled to a waveguide (40) for transmission of the light to the distal end of the endoscope.

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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 March 21, 2003 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2025.
  • 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 21, 2003
GrantedMarch 13, 2012
Term endedMarch 21, 2023
Patent numberCA 2479841 C
Classification (IPC)A61B1/07

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMarch 21, 2003Patent grantedMarch 13, 2012Term endedMarch 21, 2023

Sources & verification

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