Building foundation and floor assembly
CA 2090074 A1 · Owner: Fearn, Richard Neil · Inventors: Fearn, Richard Neil
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention reduces considerably on-site labour costs for installing a foundation and a building floor. Accuracy is improved by pre-fabricating a floor assembly prior to installation on site. The invention includes placing a plurality of temporary supports on the site surface, accurately locating the floor assembly on the supports, and providing a space between the floor assembly and the surface. Forms are located on the surface generally below the floor assembly. Concrete is poured to occupy space between at least the form the surface and a, portion of the floor assembly so that after the concrete, is set, the supports are removed and the floor assembly is supported by the concrete. The …
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 22, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2015.
- 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.