Drill for interchangeable use on a screwdriver
CA 2257040 A1 · Owner: Ideas For American Manufacturers, Inc. · Inventors: Peritz, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drill for interchangeable use on a screwdriver bit. The drill is mounted on a shank, the shank having an opening at the end remote from the drill for rapid placement of the shank on and removal of the shank from the screwdriver bit locked in the chuck of an electric powered rotating unit to permit drilling a screw hole and then upon removal of, the drill from the screwdriver bit using the screwdriver bit for installation of a screw. A countersink may also be mounted on the shank with the drill.
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 December 24, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 24, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 24, 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.