Method for manufacturing a hollow structural component of a building
CA 1083378 A · Owner: Hyttinen, Seppo · Inventors: Hyttinen, Seppo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing a hollow floor or ceiling section of a building which method comprises supporting in a floor or ceiling space to be closed, a pre-formed structural element such that the element provides a support surface onto which a floor or ceiling slab may be cast casting the slab onto, the element and thereafter relocating the element in the space or introducing a similar element into the space whereby the relocated or introduced element is spaced from the cast slab such that the slab and element together provide a hollow floor or ceiling section.
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 August 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 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.