Composite building module
CA 1069263 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 monolithic-like, composite building module such as a wall panel having a core of rigid foam encased in a shell made of fiber reinforced cement. The composite module can be made by forming a supported open shell made of a hardened mixture of cement and fibers, introducing a rigid foamable polymer into the open shell, closing the open shell with a cover member made of a hardened mixture of cement and glass fibers and thereafter holding the cover member in place while polymer foam fills the interior of the enclosed 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.