Manufacture of mineral insulated metal sheathed cables
CA 2055478 C · Owner: Thompson, Michael Anthony · Inventors: Thompson, Michael Anthony
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Mineral insulated metal sheathed cables are produced by extruding a mixture of ceramic powder, liquid, and binder onto a moving conductor (5) by means of a co-extruder (12). Liquid and binder are removed from the extruded insulating material while moving through a furnace (16), and a metal sheath (15) then applied preferably by a conform extruder (20). The process results in the continuous production of the cable.
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 May 15, 1990 and granted October 24, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 15, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 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.