Pre-bussed rigid conduit
CA 2102419 C · Owner: Square D. Company · Inventors: O'Nan, Glenn S.; Whitney, Robert I.; Simmering, Lisa C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sectionalized electrical distribution feeder system for carrying electrical power from a source point to a use point or a distribution point. Each section (14, 14') of the distribution system includes a substantially cylindrical enclosure (18) capable of being easily cut with a hand saw. The enclosure also provides support and protection from physical damage to a plurality of electrical conductors (22) which are disposed within the enclosure (18). The conductors (22) are held firmly in place by a number of electrically insulating supports (50) which snugly fit inside the enclosure (18). Each conductor (22) can be easily cut with a metal cutting hand saw, and is enclosed in an …
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 March 25, 1992 and granted August 6, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 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.