Tool handle extension
CA 2230547 C · Owner: Rapp, Doris R. · Inventors: Rapp, Doris R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tool handle extension is permanently or semi-permanently attachable to a tool having a straight elongate handle, such as a snow pusher push broom, or, similar tool. The extension enables the user to extend the reach of the tool for clearing large area having only limited access thereto, as in clearing snow from a roof area from an overlooking dormer window or the like. The extension is formed of standard, off the shelf components, with a cylindrical tube handle extension and crossmember forming a T configuration. Diagonal brace straps are provided between the ends of the crossmember and a lower point on the handle extension, for better lateral strength. Additional features such as hand …
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 February 26, 1998 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.