Nutsetter
CA 2295904 A1 · Owner: Black & Decker Inc. · Inventors: Dobson, Stewart B.; Massih, Malek Abdul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tool for driving headed fasteners has an opening in the tool. The opening is defined, by a wall of the tool. The wall has a plurality of flat planar surfaces. The planar surfaces are, connected by a connection at the ends of each planar surface to define the opening. Each, connection surface has a convex surface continuous with the planar surface. A concave surface, is continuous with the convex surface. The convex and concave surfaces define arcs with the, arcs having the same radius.
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 January 13, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 13, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 13, 2022.
- 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.