Apparatus and method for analyzing bowling technique
CA 2197520 C · Owner: Speranza, Daniel R. · Inventors: Donovan, James M.; Speranza, Daniel R.; Vezina, Larry M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus including a bowling lane, pins positioned on one end of the bowling lane a bowling, ball adapted to be launched down the bowling lane toward the bowling balls, and a spin detector for determining a spin rate of the bowling ball as the bowling ball travels down the bowling lane. An angle detector detects the angle of the spin axis of the bowling ball. The apparatus also measures and displays information relating to ball velocity, ball position coefficient of friction, launch angle, and entry angle.
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 February 13, 1997 and granted April 17, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 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.