Seat construction
CA 2072818 C · Owner: Bostrom, John M. · Inventors: Bostrom, Kurt H.; Bostrom, John M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A seat construction having a back composed of a pair of side pads which are spaced apart to provide a cavity therebetween. The cavity is adapted to receive a cylinder for a self-contained breathing apparatus which is strapped on the back of a fire fighter who is seated on the seat. The rear of the cavity is enclosed by a generally U-shaped closure and a head pad connects the upper ends of the side pads and can be pivoted from a head supporting position to a release position. As the fire fighter rises from the set, the cylinder which is strapped to his beck will engage the head pad pivoting, it to a release position, so that the cylinder will not catch on the head pad as the fire fighter …
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 30, 1992 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 30, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 30, 2014.
- 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.