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Expired Canadian patentCanada

Wave energy converter

CA 2646547 C · Owner: Wavebob Limited · Inventors: Dick, William

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 wave energy conversion apparatus is described. It comprises at least two devices (3 4), each comprising a surface float (5 6), at least one of the surface floats being rigidly attached to a submerged body (9 10). The movement of the two devices in response to a passing wave may be used to effect an energy transfer.

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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 14, 2001 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 14, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 2023.
  • 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 14, 2001
GrantedAugust 28, 2012
Term endedJune 14, 2021
Patent numberCA 2646547 C
Classification (IPC)F03B13/20

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedJune 14, 2001Patent grantedAug 28, 2012Term endedJune 14, 2021

Sources & verification

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