Golf ball injection mold
CA 2226050 A1 · Owner: The Top-Flite Golf Company · Inventors: Miller, Douglas L.; Lavallee, Gerald A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved golf ball injection mold is characterized by upper and lower support plates each containing corresponding hemispherical cavities which definespherical mold cavities when the plates are brought together. A plurality of retractable core pins are arranged in each cavity for supporting a core of a golf ball. A runner within the plates delivers fluid thermoplastic material to each cavity to form a cover on the golf ball core supported therein and a cooling channel is, provided adjacent to each cavity to provide even cooling of the thermoplastic material. Independently operated ejection assemblies are provided for the golf ball and for the residual thermoplastic material in 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 December 30, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 30, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 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.