Rotation inhibiting system for adjacent nuts or bolts
CA 2448352 C · Owner: Marczynski, Michael · Inventors: Marriott, John; Marczynski, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pair of socket elements (10, 12) are provided for mounting onto adjacent nuts or bolt heads (not shown) and a connector element (20) is provided for mounting onto the twa socket elements (10 12) to hold them together. Each socket element (10 12) comprises a body provided with a bore (14) having multiple grooves or angles by means of which it can be non-rotatably mounted onto the nut (or bolt head) in a selected one of a plurality of positions. Each body also has external grooves (13). The connector element (20) comprises a pair of annular bodies (22 32) which are permanently connected to each other. Each annular body (22 32) has internal grooves enabling it to be releasably and …
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 November 6, 2003 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2025.
- 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.