Emergency shelter
CA 2085688 A1 · Owner: Yates, Herbert G. · Inventors: Yates, Herbert G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An emergency shelter is comprised of a shell formed of accordion-pleated folded material and at least one form retaining structure having a width the dimension of which is the width of the shelter once erected and having saw-toothed edges which match opposite surfaces of walls of the shelter once it has been erected, whereby the form retaining structure can be used as a fixed separator for the walls along the bottom edges thereof and form a floor or an underlay for a floor for the shelter.
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 December 17, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 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.