Collapsible accommodation structure
CA 2075381 A1 · Owner: Graillat, Alain P. V. · Inventors: Graillat, Alain P. V.; Graillat, Alain P. V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A collapsible accommodation structure (1) comprising a base (2) at least two opposite side walls (3, 4) connected to said base and inwardly foldable one over the other and a roof (7) which is connected to said opposite side walls (3 4) so that it can be folded with the walls while being turned over so that in the collapsed position the roof (7) lies between said walls with its top side facing the outside of one of the side walls and its underside facing the inside of the other side wall.
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 February 4, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 2013.
- 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.