Tennis racket
CA 1312635 C · Owner: Spalding & Evenflo Companies, Inc. · Inventors: Janes, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tennis racket having a graphite fiber containing frame with an opening at the head end constituting a bow and with a handle pallet at the handle end. The handle pallet is formed of a soft, dense, indexable urethane The bow is formed with a common cross-sectional configuration enlarged in the direction of the axis of the opening and located around the majority of the opening. The racket also includes a grommet strip formed of a soft, durable wear resistant, polyurethane-polycarbonate blend secured to the radially exterior edge of the bow around the majority of the opening.
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 January 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2010.
- 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.