Manufacture of simulated brick products from reground brick and polymer or other binder
CA 2107985 A1 · Owner: Lex Technologies Inc. · Inventors: Walsh, Thomas P.; Walsh, Martin J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to the manufacture of products which are similar in appearance and texture to clay or concrete brick. These products are manufactured by grinding used or scrap brick products and combining these grindings with a polymer or other binding material. The mixture which is put in a molten or semi-molten state is then formed into the desired shapes.
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 October 7, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 7, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2015.
- 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.