Protective helmets
CA 1258353 A · Owner: Airsorb Pty. Ltd. · Inventors: Merralls, Stephen R.; Herder, Jaime
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a protective helmet characterised in that it comprises a shell shaped to fit about a head of wearer, the shell comprising an interior and an exterior, a forward region intended in use, to be situated adjacent a forehead of the wearer and a rearward region situated at an opposite end of the shell from the forward region the shell, also comprising a basal perimeter a resilient liner, comprising an inner concave side arranged in use, adjacent the head of the wearer and an outer convex, side adjacent the interior of the shell one or more, securing straps attached to the basal perimeter and a locking means to, in use, lockably secure the or each securing strap, the …
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 August 15, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 15, 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.