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Expired Canadian patentCanada

Improved hand-held laser device for skin treatment

CA 2457697 C · Owner: Tucek, Kevin B. · Inventors: Tucek, Kevin B.; Shanks, Steven C.

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

An improved hand-held laser device that can simultaneously provide multiple types of low level laser treatments. The device enables laser light of different pulse widths, different beam shapes and spot sizes to be applied externally to a patient's body. The device includes multiple laser sources. In the preferred embodiment, two semiconductor diode laser sources simultaneously provide two separate laser beams, one laser beam producing a line of continuous red laser light and the other producing a spot of pulsed laser light.

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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 June 19, 2002 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 19, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 19, 2002
GrantedDecember 4, 2012
Term endedJune 19, 2022
Patent numberCA 2457697 C
Classification (IPC)A61N5/06 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJune 19, 2002Patent grantedDec 4, 2012Term endedJune 19, 2022

Sources & verification

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