System for the prevention of fire, water or (flue) gas and the like from propagating along cables
CA 2013227 C · Owner: Beele, Johannes Alfred · Inventors: Beele, Johannes Alfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for the prevention of fire, water or (flue) gas and the like from propagating along cables which system.is, provided with a safety chute which can be mounted along the cables and with at least one sealing body substantially made of a fire-resisting material, which sealing body can be detachably installed slung at least a part of the inner wall of the safety chute.
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 28, 1990 and granted July 18, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 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.