An electrically heated wiper blade
CA 2306100 A1 · Owner: Broke, Mikael · Inventors: Broke, Mikael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
At low temperatures, it is desirable to be able to heat up a wiper blade in windscreen wipers on a vehicle so as to prevent ice formation on the wiper blades and the windscreen. Within the wiper blade there is disposed an , elongate heating device (4) in thermal contact with the profile (1) of the wiper blade. The heating device (4) extends along the entire wiper profile (1) and is connected to a current source. The heating device (4) includes a temperature sensor (9, 16) which extends substantially along the entire heating device (4) and which is connected to the current source. The material in the temperature sensor (9, 16) has a temperature-dependent resistivity. Suitably, this …
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 October 7, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 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.
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.