Wiper driving apparatus
CA 2095310 C · Owner: Kano, Masami · Inventors: Kimura, Yoshimasa; Kano, Masami
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wiper driving apparatus comprising: a drive gear 12 rotated by a motor 31; a clutch member 15 rotating together with the drive gear 12 only in a direction the drive gear 12 is biased to; a pair of electric conductor plates 24 and 25 for turning on and off an electric circuit of the motor 31; a pair of movable contacts 16 and l8 rotatable relatively with the electric conductor plates 24 and 25 in sliding contact with the electric conductor plates 24 and 25, respectively; and a housing 1 rotatably supporting the clutch member 15 with a supporting axle 14 and having the electric conductor plates 24 and 25 provided concentrically therewith; wherein both of the movable contacts 16 18 and the, …
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 April 30, 1993 and granted December 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 30, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 30, 2015.
- 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.