Housing structure for accommodating electronics apparatus
CA 2053145 C · Owner: Suzuki, Eiji · Inventors: Suzuki, Toshiaki; Suzuki, Eiji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A box-like housing for an electronics apparatus is provided having superior effects for preventing problems caused by electrostatic discharge (ESD). The wall of the housing is formed by a sandwiched plate consisting of the innermost layer of high electro-conductive material such as a steel plate the, middle layer of electro-insulating material such as plastic and the outermost layer of low electro-conductive material having much higher resistance compared with the innermost layer such as a carbon-containing paint coating. The innermost layer and the outermost layer are frame-grounded through a common earth line.
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 October 10, 1991 and granted August 12, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2013.
- 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.