Column assembly
CA 2059097 A1 · Owner: Simenoff, George · Inventors: Simenoff, George
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A column assembly is provided for use in the construction of building structures. The assembly comprises in, combination , a column with a first end and a second end a, threaded rod extending from the second end a second column also, with a first end and a second end where a threaded rod extends from the first end of the second column. The threaded rods extend in axial alignment and define a space between the columns and a threaded sleeve connects the two rods.
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 January 9, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 9, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 9, 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.