Composite building block with connective structure
CA 2384077 A1 · Owner: Spakousky, John · Inventors: Spakousky, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite building block (1) with a connective structure (4) between the inner (3) and outer (2) wall units is present. The wall units (2 3) can be , made of cement, clay, brick or similar materials. The connective structure (4) is made of a material different than the wall units (2 3) and may be , integrally formed per the requirements of a particular wall construction project. In one embodiment, the connective structure (4) comprises a center form (10), and one or more arms (7) have connectors that connect to corresponding connectors integrally formed on the wall units (2 3). The , center form (10) may partition the cavity between the inner (3) and outer (2) wall units into two 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 August 30, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 30, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2022.
- 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.