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Expired Canadian patentCanada

Flashlight having back light elements

CA 2544975 C · Owner: Streamlight, Inc. · Inventors: Sharrah, Raymond

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 battery powered flashlight is provided having a primary lamp assembly providing a high powered light source in a forward direction and a back light , providing a lower powered light source in a rearward facing direction. Preferably, the flashlight includes a hollow housing having a back wall into which one or more apertures are formed for receiving one or more back light elements.

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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 October 29, 2004 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2024.
  • 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.
FiledOctober 29, 2004
GrantedJuly 17, 2012
Term endedOctober 29, 2024
Patent numberCA 2544975 C
Classification (IPC)F21L4/02 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedOct 29, 2004Patent grantedJuly 17, 2012Term endedOct 29, 2024

Sources & verification

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