Electrical conduit and conduit system
CA 2304297 A1 · Owner: Louden, R K · Inventors: Louden, R K
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrical conduit piece of the invention has threaded regions, particularly external left hand, tapered or, straight threaded regions at each end. This conduit piece is particularly well adapted to be used in conventional conduit systems by coupling to conventional conduit pieces through a coupling of the invention having two internal threaded regions one threaded region having left hand threads and the other threaded region having right hand threads. A groove may be formed in the internal wall of the coupling e.g. at or near its, longitudinal center to provide an open region in which ends of conduit pieces inserted into the coupling can abut. In a preferred embodiment, the conduit …
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 April 7, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2022.
- 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.