Transient voltage surge suppressor with internal barriers
CA 2258332 C · Owner: Murphy, Patrick J. · Inventors: Finlay, David A. Sr.; Murphy, Patrick J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transient voltage surge suppressor (TVSS) receptacle having front and rear, matable casings including a plurality of through openings for receiving the blades of an electrical plug; a plurality of first components which are fixed with respect to said casings; a plurality of second components which are moveable relative to said first components; a plurality of first rigid members formed integrally with the front and rear casings and extending from inside surfaces of each casing to define recesses for receiving the components; and a separator within the periphery of the front and rear casings for insulating one or more of the plurality of first components from each other said separator …
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 January 11, 1999 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2021.
- 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.