Patent Yard Sign in
Expired Canadian patentCanada

Stator arrangement of alternator for vehicle

CA 2238504 C · Owner: Denso Corporation · Inventors: Umeda, Atsushi; Shiga, Tsutomu; Kusase, Shin

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

In a stator of an alternator for a vehicle including a stator core and a multi-phase stator winding the stator, winding is composed of a plurality of conductor segments having a pair of conductor members connected with one another to form a first coil-end group disposed on one axial end of the stator core so that first U-turn portions of the conductor segments are surrounded by second U-turn portions of the conductor segments and a second coil-end group disposed on the other axial end of said stator core so that ends of said conductor segments are connected to form lap windings.

Read the whole patent

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 May 25, 1998 and granted March 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 25, 1998
GrantedMarch 13, 2001
Term endedMay 25, 2018
Patent numberCA 2238504 C
Classification (IPC)H02K17/42 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMay 25, 1998Patent grantedMarch 13, 2001Term endedMay 25, 2018

Sources & verification

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