Rf shielding support for stacked electrical circuit boards
CA 1137199 A · Owner: Northern Telecom Limited · Inventors: Marcantonio, Gabriel; Macklem, David M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A combined supporting arrangement and RF shield for stacked circuit boards has several conducting shields each shield covering a, respective circuit board and having an edge flange part of the flange, being turned under to space a particular circuit board from the next lower circuit board in the stack, and part of the flange being turned out to engage a clamp projecting from a baseboard the clamp being common to all, the shields.
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 December 7, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 7, 1999.
- 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.