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Expired Canadian patentCanada

Retractable vortex generator

CA 2613446 C · Owner: Narramore, James Charles · Inventors: Narramore, James Charles

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 flow control device is disclosed including a flow control surface (20) over which fluid is designed to flow in a predetermined direction (F) . Vortex generators (30) are associated with the flow control surface. Each respective vortex generator has a pivot axis (40) that forms an acute angle (a) with respect to the predetermined direction and is capable of being positioned in both of an extended state, in which the respective vortex generators function to create a swirling fluid flow, and a retracted state in which the , respective vortex generators are pivoted via the pivot axis so as to lie adjacent to the flow control surface. An actuator is associated with each of the vortex …

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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 30, 2006 and granted November 22, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 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.
FiledJune 30, 2006
GrantedNovember 22, 2016
Term endedJune 30, 2026
Patent numberCA 2613446 C
Classification (IPC)B64C23/06

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJune 30, 2006Patent grantedNov 22, 2016Term endedJune 30, 2026

Sources & verification

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