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Expired Canadian patentCanada

Dynamo-electric machine components and methods of making same

CA 2269453 C · Owner: Bonura, Walter · Inventors: Bonura, Walter

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 dynamo-electric core which has a lamination stack defining an axial bore therethrough is wrapped by a wire coil having a coil lead. A mounting member is axially movable within said axial bore between a first position and a second position. A coil lead anchoring structure is positioned adjacent an end portion of said mounting member and is axially movable with said mounting member. When the mounting member is in the first position, there is adequate space for winding apparatus and fusing apparatus for placing and securing the coil lead to the coil lead anchoring structure. When the mounting member is in the second position the, axial length of the dynamo-electric core is reduced.

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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 April 20, 1999 and granted July 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 20, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 20, 1999
GrantedJuly 30, 2002
Term endedApril 20, 2019
Patent numberCA 2269453 C
Classification (IPC)H02K1/12 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedApril 20, 1999Patent grantedJuly 30, 2002Term endedApril 20, 2019

Sources & verification

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