Golf ball comprising a metal, ceramic, or composite mantle or inner layer
CA 2283787 A1 · Owner: Callaway Golf Company · Inventors: Sullivan, Michael J.; Nesbitt, R. Dennis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A unique golf ball (100) and related methods of manufacturing are disclosed in which the golf ball (100) comprises one ore more mantle layers (20) comprising one or more metals, ceramic, or composite materials. The golf ball (100) may also comprise an optional polymeric spherical substrate inwardly disposed relative to the one or more mantle layers (20). The golf balls (100) according to the present invention exhibit improved spin feel, and acoustic properties. , Furthermore the one or more interior mantle layers (20) prevent or at least , significantly minimize, coefficient of restitution loss from the golf ball (100), while also significantly increasing the movement of inertia of …
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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 March 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2020.
- 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.