Composite building module
CA 1069334 A · Owner: Ametex Ltd. · Inventors: Piazza, Matthew R.; Zimmer, David E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite building module which comprises a rigid foam core encased in an enclosed shell made from a hardened mixture of cement and fibers. The core is formed by foaming a foamable polymer composition in a five-sided open shell followed, by forming the sixth side over the core to enclose the shell. The core is adhesively interlocked via the in situ foaming with the five-sided shell.
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
- Granted January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
- 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.