Process for the production of a formwork assembly and a formwork assembly produced thereby
CA 1303377 C · Owner: Krecke, Edmond D. · Inventors: Krecke, Edmond D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In processes for the production of a formwork assembly for casting concrete structures, side wall portions of the assembly are interconnected by connecting members which are produced by applying mortar, with the use of a bonding agent, to the inward side of the wall portion in openings in a template. A bell-shaped or disc-shaped casting mould filled with moist concrete is then turned over on to the mortar, being located in the correct position by the openings in the template. The respective halves of a formwork assembly produced in that way may be stacked with the interposition of thin plates and can be subsequently joined, for example by adhesive means. Modified forms of the process use …
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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 June 16, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 16, 2009.
- 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.