Building construction system
CA 2045509 A1 · Owner: Lubeca Construction Systems Pty Ltd. · Inventors: Schmidt, Hans Heinrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A building construction system for progressively forming a plurality of vertical superimposed concrete segments (27a 27a) in a, building construction. The system comprises a plurality of screw jacks (20) forming support columns and each carrying at their upper ends sub-frames (21) for the system onto which a main frame (23) overlying the positions at which the segments are to be formed is adapted to be positioned, and from which form works (31) are suspended to be movable to positions to define spaces within which concrete is poured to form said segments. The screw jacks (20) are adapted to be supported on a lower previously constructed level (28) of said building preceding a previously …
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 February 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 2012.
- 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.