Installation system
CA 2050488 A1 · Owner: Dorma Gmbh & Co. Kg · Inventors: Grabowski, Walter; Freundner, Hassao; Freundner, Hassao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrical installation system in which junction boxes hold-electrical elements such as switches outlets, communication devices, and the like for installating electrical equipment in series. Multiple-core conductor sections are accessible from inside the boxes. Cores of the conductor sections of adjacent installation areas are connected to power-supply lines through incoming and outgoing elements. The power supply lines have entrances and passages in sides of said boxes which may be single or multiple elements. Replaceable conducting strip holders are insertable into the boxes below electrical equipment to be installed. Conducting contact rails are insertable into said holders and they …
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 August 24, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 24, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 24, 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.