Flexible interlocking wall system
CA 2297679 A1 · Owner: Cerrato, Dominic · Inventors: Cerrato, Dominic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A masonry wall system is disclosed incorporating a plurality of courses of masonry blocks, each block consisting of interlocking dovetails (12) along with vertical and horizontal mating surfaces (11 15, 16, 17). The main block , has two stabilizing holes (14) running at a vertical axis through the center. Steel reinforcement rods or square tubes are loosely inserted into these stabilizing holes (14) at predetermined intervals. Corner blocks (26) are employed to connect the walls at right angles and are used in conjunction with short blocks (28) to stagger the vertical joints from course to course. The predetermined tolerances between the masonry components and the loosely placed …
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 September 8, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 8, 2020.
- 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.