Electric motor structure
CA 2225041 A1 · Owner: Iwata, Masato · Inventors: Machida, Eiichi; Iwata, Masato
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electric motor structure in which a yoke supporting an armature shaft is fixedly secured to a bracket through set bolts placed in its axial direction and in which the distances between a pair of brushes and a pair of internal terminals connected thereto are substantially equal to each other. In the base unit (10), set bolt through holes (10e) for allowing the penetration ofa pair of set bolts (9) and a pair of brush holders (11) are disposed on diameter lines perpendicular to each other and further, a pair of internal, terminal plates (12c) are disposed to interpose the one set bolt (9) therebetween in its circumferential direction. The inserting tip portion of a coupler unit (13) …
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 December 17, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2019.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.