Support device for safety helmet
CA 1329863 C · Owner: Hallgrimsson, Bjarki · Inventors: Hallgrimsson, Bjarki; Shewchenko, Nicholas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In general support devices for stabilizing a safety helmet on a wearer's head include straps or webbing extending downwardly from the usual webbing in the interior of the helmet. A simple, easily installed device for mounting in new or existing safety helmets includes an inverted T-shaped body the stem and crossbar of which are both concavo-convex for attachment to the rear interior surface of a helmet so that the device more or less conforms to the rear of the wearer's skull. The bottom crossbar engages the nape of the neck for stabilizing the helmet on the wearer's head.
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 May 31, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2011.
- 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.