Breakaway pole assembly
CA 2020516 A1 · Owner: Cooper Industries, Inc. · Inventors: Briden, C. Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The breakaway assembly includes a cast aluminum base having a collar for supporting a wrought aluminum standard and a base flange for securing the breakaway assembly to a plurality of anchor bolts projecting from a concrete foundation. The base flange includes a plurality of apertures for receiving the anchor bolts. Grooves are provided in the base flange adjacent the anchor bolt apertures. Upon impact, the standard creases and bends causing the heel of the base flange to lift. This lifting motion shears the base flange at the grooves to permit the base to lift away from the anchor bolts.
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 July 5, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 5, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 2012.
- 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.