Method of masonry wall construction
CA 2078774 A1 · Owner: Lite Brick Australia Holdings Pty. Limited · Inventors: Mccurdy, Laurence Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of masonry wall construction comprising the steps of providing an undersupport (1), forming a wall comprised of a plurality of rows of masonry block elements (4 8, 9) of substantially, rectangular configuration with apertures (13) therethrough which will lie in the plane of the erected wall and which are modular with respect to their positioning in said block elements (as herein defined) so as to provide columns of apertures (13) extending from the top of the wall to the undersupport (1) and applying compressive force to the wall in the plane of the wall by means of tensionable anchoring means (3, 14, 17 18) respectively located in , columns of apertures (13) and connecting the top …
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 June 28, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 28, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 28, 2013.
- 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.