Apparatus for preventing whiplash
CA 2225707 C · Owner: Dellanno, Ronald P. · Inventors: Dellanno, Ronald P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A vehicle-installed supporting seat for a passenger (28) is provided which , includes, a seat back (12) provided with an integral head-neck restraint (14) comprising a cranium, support portion (16) and a cervical spine support portion (18). Each portion includes a, layer of resilient material (20) supported on an underlying inflexible support shell (22), which together act to effectively define a contour (24) that interfits with the posterior, contour (26) of the passenger's cranium and cervical spine. A controllably deformable, energy absorbing crush zone (40) is disposed to the rear of the shell as to be compressed, by the rearward displacement of the shell. The cervical and cranium …
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 June 25, 1996 and granted May 14, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2018.
- 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.