High-strength tubular beam of folded corrugated cardboard
CA 1209778 A · Owner: Finsen S.P.A. · Inventors: Melli, Ilario
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high-strength tubular beam of folded corrugated cardboard, for example for constructing disposable loadcarrying platforms, comprising a single corrugated cardboard sheet folded back several times on itself to form an overall section of right angled or isosceles trapezium form divided into two adjacent rectangular or rectangular trapezium half sections, each comprising two mutually inverted triangular channel configurations which mate with each other and have a common diagonal.
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 19, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 2003.
- 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.