Golf ball
CA 1256231 A · Owner: Callaway Golf Company · Inventors: Melvin, Terence; Nesbitt, Dennis R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosure relates to golf balls and more particularly to golf ball cover compositions. The disclosure is concerned primarily with composition and method for the enhancement of the color of a golf ball cover by the use of an optical brightener in conjunction with a pigmented golf ball cover composition. This invention is concerned with the enhancement of the color of white golf ball covers. When used in conjunction with a white pigmentation system the optical, brighteners in question enhance the color in the blue spectrum range in order to give the cover a relative whiter appearance.
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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 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.