Safety helmet for cyclists
CA 2043725 C · Owner: 9001 6262 Quebec Inc. · Inventors: Garneau, Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The safety helmet comprises hard inner and outer shells and a shock-absorbent insert. The inner shell forms at its lower edge and on the outside thereof an upwardly-opening trough in which the insert is inserted. The free edge of the trough joins with the lower edge of the cuter shell above the bottom of the trough. The two shells, together with the insert form, ventilation openings which are lined by portions of the two shells.
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 May 31, 1991 and granted August 26, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2013.
- 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.