Ball identifying device
CA 2429337 C · Owner: Thirkettle, John Scott · Inventors: Jolliffe, David Victor; Thirkettle, John Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device (80) for reading a coded golf ball (40) comprises a helical track (82) on the inside or outside of a cylindrical housing (81) the track serving , to change the orientation of the ball relative to an antenna coil (85) to ensure that the code is read. The track may be arranged horizontally and rotated by a motor; a flap (30) may be provided to avoid balls following each other too closely onto the helical track. Alternatively the track may be arranged vertically and the balls may fall under gravity.
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 19, 2001 and granted October 23, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2023.
- 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.