Break away stud
CA 2213143 C · Owner: Staszak, Michael · Inventors: Staszak, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A traction stud for an endless snowmobile belt including an elongate rod having a ground engagable end and a threaded end which can be coupled to the track with a threaded fastener. A slot is cut into the threaded portion of the track such that the terminal end threaded portion is separated from the remaining threaded portion by a gap but coupled thereto via a reduced stem which after installation, can be broken away so that the remaining portion of the stud shank is flush with the fattener. The invention also contemplates the method of making the stud and the method of installing the stud with a transverse slot providing a weakened break away portion which can be severed by the application …
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 August 15, 1997 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 15, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 15, 2019.
- 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.