Construction apparatus
CA 1288948 C · Owner: Erickson, Harry · Inventors: Erickson, Harry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A construction apparatus has a plurality of relatively flat components having at least three sides an, elongated rod-like member extending along each side and enlarged corner portions between the members. A plurality of connectors is provided for connecting together adjacent sides of adjacent members to form structures. Each connector has a pair of recesses shaped to releasably embrace adjacent pairs of members. The recesses of each connector open outwardly in a common direction so connectors may be positioned on pairs of members without altering previously formed portions of the structure.
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 September 17, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 17, 2008.
- 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.