Apparatus and method for a modular support and lifting system
CA 2217124 C · Owner: Vanderklaauw Marital Trust · Inventors: Vanderklaauw, Peter M.
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 a modular structural support and elevating system for constructing temporary support structures. The system includes providing a plurality of generally identical building elements or cribs (100). The cribs (100) are generally box shaped and a first crib, (100') may be mated to a second crib (100") for forming elongate support structures. The cribs (100) also have an opening (112) on each non-mating side (106) able to receive various mounting components. The cribs (100) further include connecting hardware for releasably connecting the cribs (100) to one another. A hydraulic jacking system (242) may be used with the cribs (100) for progressively elevating or …
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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 April 23, 1996 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 23, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2018.
- 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
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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.