Structural space element
CA 1069333 A · Owner: Haapala, Jalo · Inventors: Haapala, Jalo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a structural space element which consists of a tube having joining collars on its outer surface which protrude with equal depth throughout their perimeter. The joining collars are thicker along the side walls of the element. The thicker parts serve as vertical pillars. The collars are arranged in such a manner that the element is linkable to corresponding other structural elements, situated at an angle of 180° in relation to this element. Linked together the elements form a beam-pillarring system in which the elements are disposed opposite and imbricately to each other.
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.
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.