Aerial cable and tension clamp assembly
CA 2240599 C · Owner: Armitage, Sam · Inventors: Davies, Martin Vincent; Sutehall, Ralph; Armitage, Sam
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An assembly comprising a self supporting aerial cable and tension clamp means including gripping means for gripping the cable, the gripping means comprising at least one helically wound rod fitted over the cable's outer sheath, wherein, (see fig. I) where C is the outer diameter of the cable R is the, diameter of the or each rod and W R is the outer diameter of the unstressed winding of the or each rod.
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 June 12, 1998 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 12, 2020.
- 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.