Coupling mechanism
CA 2332601 C · Owner: Black & Decker Inc. · Inventors: Driessen, Leo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coupling mechanism for a power tool is formed on one portion of the tool and comprises a generally cylindrical projection (102) with a side wall having a radial, recess (290) extending part-circumferentially along the side wall. A further projection, (261) is formed on the side wall which extends in both directions parallel to the axis, of the cylindrical projection and in a direction radially outward from the side wall as, well.
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 15, 2001 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 15, 2023.
- 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.