Diagnostic meter base
CA 1284356 C · Owner: Davidson, Gordon O. · Inventors: Mitchell, Barry C.; Davidson, Gordon O.; White, Larry A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A diagnostic meter base used for testing the, connections of a self-contained meter in a polyphase installation is described. The diagnostic meter base comprises a box-like casing, one end of which defines a socket with contacts to engage respective contacts of the meter, and the other end of which defines a plug with contacts to engage respective contacts of a permanent support socket of the installation. The casing houses a network of circuit elements each including a lamp which responds to current through the element whereby the, pattern of lamp responses is indicative of the pattern connections in the installation. The lamp bulbs are mounted in a well at one end of the casing the well …
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 May 21, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 21, 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.