Building method and apparatus
CA 2103564 C · Owner: Sloma, Robert Michael · Inventors: Sloma, Robert Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of building a structure (22) on a substrate (14) said method including the steps of providing on the substrate (14) a support arrangement capable of adopting a first substantially rigid state whilst the structure (22) is being built thereabove and, a subsequent, second state permitting the accommodation of movement of and/or forces in the substrate (e.g. due to heave). The support arrangement comprises fluid confinable means (16) which in the arrangement's first state, confines a fluid therein to a first space and is operable (via said fluid) to support the structure (22) or at least parts thereof above the substrate (14) and which in the arrangement's second state, does not …
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 10, 1992 and granted February 10, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 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.