Apparatus for grounding external metal watthour meter component
CA 2198650 C · Owner: Robinson, Darrell · Inventors: Learmont, Robert O.; Robinson, Darrell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A watthour meter socket adapter electrically connects an external sealing ring and/or a metal cover ring on a watthour meter to ground. A surge ground conductor is mounted on an end mounting flange of the socket adapter housing and extends within and is joined to the housing by a first metal fastener. One end of the first metal fastener extends exteriorly of the housing and supports a first metal tab which is engaged by the metal sealing ring. A second metal fastener extends through the surge ground conductor and supports a second external tab engagable with a grounded meter socket cover. Alternately, a tab extends integrally from an upper end of the surge ground conductor for engagement …
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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 February 27, 1997 and granted September 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2019.
- 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.