Helmet with auxiliary, electrically operated service
CA 1264101 C · Owner: Dampney, Ian Trevor · Inventors: Dampney, Ian Trevor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A helmet comprises a headshell visor and a harness, within which the head of the user is engagable. An auxiliary electrically operated service is provided such as a lamp or, air supply, operated by a switch actuated as the helmet is engaged or disengaged from the user's head. When the service is an air supply, the switch operates a fan motor which draws air into the helmet through a filter.
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 January 2, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 2007.
- 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.