Wheeled scaffold for workmen and building materials
CA 1256147 A · Owner: Whandering Metal Industries Ltd. · Inventors: Whan, Douglas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE: Wheeled Scaffold For Workmen, And Building Material INVENTOR: DOUGLAS WHAN, ABSTRACT OF THE DISCLOSURE A wheeled scaffold for roofing materials has a framework for carrying the roofing materials. The framework includes a row of steps extending along the framework. First and second wheels are secured to the framework. The first wheels support the framework on roof purlins, whilst the second wheels are arranged to run along the upper side of the roof purlins. The first and second wheels can be adjusted to accomodate different spacings of the roof purlins. Work platforms are secured to a side of the framework to enable a, person to secure roofing materials in position without leaving …
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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 2006.
- 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.