Scaffolding frame to which a story can be added
CA 2068615 C · Owner: Rock, Ernst · Inventors: Rock, Ernst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A scaffolding frame to which a story can be added comprising vertical stands which are formed as hollow sections, horizontal struts which are secured to the vertical stands, and at least one joining sleeve which is inserted into a vertical stand and can be set at a specific height by means of a safety bolt which is inserted through an opening provided in the side wall of the joining sleeve and an opening in the vertical stand which is in alignment with the opening in the joining sleeve, the scaffolding frame being characterized in that the joining sleeve has radially extending peripheral expansions on its side wall, that the vertical stand is provided at each of its ends with a section end …
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
- Filed May 13, 1992 and granted May 26, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2014.
- 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.