Golf swing analysing apparatus
CA 2111857 A1 · Owner: Zevo Golf Co. Inc. · Inventors: Lindsay, Norman Matheson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for detecting measuring and/or displaying, differences from a desired ideal golf swing comprises (a) one or two permanent magnets in spaced recesses in one or more clubs, (b) a number of loops in a planar detector array close to the notional or actual ball position and (c) readout means for picking up the various signals created as the magnets cross straight line portions of the loops and conveying them to indications of swing angle, club face angle club face, tilt, impact zone at the club face speed, acceleration, rake, and so on. The magnitudes of speed height sensitivity, and, magnet strength permit such golf diagnostic equipment to be readily constructed and give usable …
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 June 18, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 18, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2014.
- 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.