Housing arrangements for electrical or electronic equipment
CA 1287680 C · Owner: Gec Plessey Telecommunications Limited · Inventors: Whitlam, Michael; Finney, Alwyn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Housing arrangements for electrical or electronic equipment. A housing arrangement for equipment such as telephone, exchange equipment or transmission equipment in which individual, circuit units are formed on printed circuit boards mounted side-by-side on a shelf unit, wherein the shelf unit forms a first electromagnetic screening enclosure, and interconnections between said circuit units, and exteral connections to those units are made by way, of a second electromagnetic screening enclosure having one face in common with the first enclosure.
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
- Granted August 13, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2008.
- 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.