Connection of windshield wiper blades
CA 2220462 C · Owner: Herring, Richard Allen · Inventors: Powell, William Arthur; Stahlhut, Alan Jeffrey; Herring, Richard Allen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A windshield wiper blade assembly system includes a windshield wiper blade assembly and an adapter. The assembly includes a connector configured to be connected to a first type of windshield wiper arm such as a, hookslot wiper arm having a smaller hook. The assembly also includes a blade carrier attached to the connector and a wiper blade attached to the blade carrier. The adapter is configured to be attached to the connector to permit connection of the windshield wiper blade assembly to a second type of windshield wiper arm such as a, hookslot wiper arm having a larger hook without, detaching the carrier from the connector. The connector may be configured for attachment to pin-type wiper …
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 November 7, 1997 and granted October 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2019.
- 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.