Two handed swivel ice scraper
CA 2268568 C · Owner: Hamilton, Dennis · Inventors: Hamilton, Dennis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A windshield scraper, for removing frost or ice from glass surfaces of motor vehicles, has, a blade attached to an elongate main handle plus an auxiliary handle , swivellably connected to the main handle. The user holds the main handle with one hand with the blade at a , desired angle against the surface being scraped, while with the other hand holding the auxiliary handle at a desired angle, relative to the main handle. The user applies longitudinal force to both the main handle and the, auxiliary handle. The force applied to the main handle acts primarily to move the blade across the, scraped surface. The force applied to the auxiliary handle acts primarily to augment the normal …
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 9, 1999 and granted June 10, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2021.
- 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.