Golf club head to shaft connection
CA 2124750 A1 · Owner: Helmstetter, Richard C. · Inventors: Schmidt, Glenn H.; Helmstetter, Richard C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A golf club having a head and a shaft defining an axis, the head having a heel, a toe a top, and a, bottom, an improved connection of the shaft to the head comprising a socket associated with the head the socket, having inner wall structure extending in the direction of the axis, and with annular wall portions relatively angled at axially successive locations in the direction at least one of the wall portions providing a locally camming surface; the shaft having a lower end portion forcibly received endwise into the socket and collapsed, at least in part toward the axis in response to the forcible reception of the shaft lower end portion into the socket, and against the camming surface; the …
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 May 31, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 31, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2016.
- 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.