An apparatus and method for a temporary spread footing
CA 2356276 A1 · Owner: Crookham, Joe P. · Inventors: Crookham, Joe P.; Whitson, James A.; Tippett, Walter R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for providing a temporary spread footing for supporting a variety of different vertically extending structures. The apparatus includes a frame with a top and bottom. The frame can have a substantial space or void in between the top and bottom into which weights or devices can be placed. A connection on top of the base removably connects to the structure to be supported. Outriggers could also be used to substantially increase the overturning moment resistance of the base. The outriggers can be removable or retractable so that for transportation the base has minimum , dimensions. The method includes pre-determining the needed weight and overturning moment …
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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, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 17, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 2021.
- 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.