Badminton racquet
CA 1212704 A · Owner: Jseng, Kuni · Inventors: Jseng, Kuni
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
7-, "BADMINTON RACQUET", ABSTRACT, A badminton racquet has a head of characteristic shape wherein the maximum length lying on the geometrical central longitudinal axis, is in a range of 22.0 to 24.0 cm, while the maximum width on a transversely extending axis either identical with the geometrical central transverse axis or spaced apart downwardly therefrom at most by 2 cm, is in a range of 17.5 to 19.5 cm, further, top and bottom arcs have a height of 0.5 to 2.5 cm, and the curvature radius of respective top and bottom corners is from 3.5 to 7.5 cm, but the top arc has a width from 9.0 to 11.0 cm while the bottom arc has a slightly narrower width from 8.5 to 10.5 cm.
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 October 14, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 14, 2003.
- 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.