Case for empty nuts
CA 2402487 C · Owner: Pare, Jean-Guy · Inventors: Pare, Jean-Guy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A problem occurs when using stamped wing nuts for example for the assembly and disassembly of carports and any other structures secured by stamped wing nuts. There is no tool that could be installed on a drill or other tool holder to screw or unscrew stamped wing nuts onto or off of bolts that hold the pieces together. One must screw them on by hand which could compromise the strength of the stamped wing nuts or damage them thereby posing a risk of the object detaching upon movement. In the present invention the tool facilitates the screwing and unscrewing nuts of stamped wing nuts by perfectly adjusting to the shape of the stamped wing nut thus reducing thereby reducing working time. It …
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 September 26, 2002 and granted November 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2024.
- 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.