Shoring and scaffolding frames of mechanically connected components
CA 1234298 A · Owner: Aluma Systems Incorporated · Inventors: Johnston, Ronald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A frame for supporting vertical loads and an aluminum tubular leg for such frame is disclosed. The legs are joined by a brace arrangement and connectors are used for mechanically connecting the brace arrangement to the legs for stabilizing the legs when under load. Each of the legs has spaced portions which are substantially symmetrical about a plane containing the longitudinal axes of the frame legs and which provide areas for mechanical connection of the brace arrangement to the leg. Such mechanical connection of the frame provides a versatile frame which may be used in concrete forming work and which may be readily repaired.
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 March 22, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 22, 2005.
- 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.