Anti-skid device for preventing slippage of automobile tire
CA 1315654 C · Owner: Hirakawa, Kiyohiro · Inventors: Hirakawa, Kiyohiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An anti-skid device for preventing slippage of a wheel is disclosed. The anti-skid device comprises a cylindrical expandable member disposed on a tread portion of a tire, and compressed fluid supplying means. The expandable member has anti-skid members implanted at a radially outer portion of the expandable member, and the expandable member is formed with a hole at a radially inner portion thereof. The compressed fluid supply means is connectable to the hole of the expandable member. The expandable member is expanded upon supply of compressed fluid into the hole and is shrunk upon, discharge of the compressed fluid therefrom. kb:yc
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 April 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 6, 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.