Concrete block for use in fence or building construction
CA 2353349 A1 · Owner: Azar, Tony J. · Inventors: Azar, Tony J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A block for use in construction has opposed front and rear surfaces opposed , top and, bottom surfaces, and a pair of opposed ends. The top and bottom surfaces are complementarity profiled to mutually interfit. The end surfaces are shaped to permit a, plurality of blocks to be laid in a course with no mortar in between blocks in a course.
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 July 20, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 20, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2023.
- 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.