Panel assembly
CA 2067052 A1 · Owner: Abel, Gunther · Inventors: Abel, Gunther
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A panel structure with a pair of panels each having therein a hollow space and arranged with juxtaposed edge regions, openings being provided in the edge regions which form connections between the hollow spaces in the two panels and airtight seals extending around the connections between the openings. The hollow spaces in the panels are airtight except to the openings and a pump connection and the panels are secured to one another by the use of a partial vacuum in the hollow spaces.
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 April 24, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 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.