Wiper arm of windshield wiper
CA 1308524 C · Owner: Arai, Masaru · Inventors: Saita, Itsuro; Arai, Masaru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wiper arm device of the kind including a rotatable arm head connected to a wiper motor, a retainer rockingly connected to the arm head through a hinge pin a spring with one end being connected to the retainer and the other end being connected to a roller pin and a, link supporting the roller pin and being rockable around a pivot shaft which is mounted on the arm head. The link can forcively be displaced in response to the movement of the wiper arm from the rock-back condition toward the normal operating condition.
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
- Granted October 13, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 2009.
- 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.