Golf club head
CA 1257884 A · Owner: Yonex Kabushiki Kaisha · Inventors: Yoneyama, Minoru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A golf club head is disclosed which comprises: a sole formed of metal material such as soft iron stainless steel, and the like; a hosel for receiving a shaft therein and formed of metal material integrally with the sole; a filler member having a specific gravity of 5 to 7 and formed by mixing fiber reinforced resin material with weighty material, the filler member having a substantially triangular shape in cross section and secured to said sole; and a fiber reinforced resin layer having a substantially reverse V shape in cross section, the layer being fitted over and enclosing the filler member, and lower marginal edges of the layer being substantially flush with upper edges of said sole.
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
- Granted July 25, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 25, 2006.
- 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.