Cervical collar permitting tracheotomy
CA 1237352 A · Owner: Griener (Charles) And Company, Inc. · Inventors: Calabrese, Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A cervical collar having front 14 and rear 16 halves removably connected together provides for the possibility of a tracheotomy via an opening 22 in the front half so as to permit access to a person's trachea. The collar provides sufficient support so as to restrict the cervical region without hyperextension of the neck thereby avoiding further injury.
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, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- 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.