Heater for windshield wiper
CA 2357337 A1 · Owner: Mclelland, James Milton · Inventors: Mclelland, James Milton
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The wiper-heater is composed of a conduit which is fastened to the blade and arms of a, windshield wiper. Part of liquid heated by the engine of the vehicle is diverted to the conduit, where it serves to heat the blade and arms of the wiper as it flows through the conduit. Liquid, that discharges from the conduit joins the flow of liquid from the radiator of the vehicle to, the engine.
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 September 14, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 14, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 14, 2023.
- 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.