Plate for electrodynamic machines
CA 2215790 C · Owner: Grudl, Josef · Inventors: Grudl, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a disc (10) for the magnetic circuit of an electrodynamic motor with a central opening (12) and segments (14, 16) disposed about said opening (12) said segments having radially aligned legs (18 20) and if, necessary peripherally-extending arms (22 25), said legs, defining winding grooves (30) radially accessible from the exterior with openings (32) formed in the region of the free radial ends of the legs (20)- The openings (32) may be closed by bending the legs (18, 20) and/or the arms (22 24), (Figure 1).
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 February 19, 1996 and granted April 11, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 19, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 2018.
- 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.