Golf swing improvement device
CA 2105960 C · Owner: Briggs, Fred E. · Inventors: Briggs, Fred E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A golf swing improvement device includes a harness defined by shoulder straps and a chest strap for mounting the device on the user; and a multi-sectional rectilinear extensible wand, which is connected to a plate on the front center of the chest strap and to the top end of a golf club by eyebolts. The structure enables the user to determine swing errors, because such errors result in contact of either arm of the user by the wand, depending upon the nature of the error.
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 10, 1993 and granted September 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2015.
- 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.