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Expired Canadian patentCanada

Tester for solid state electronic components

CA 1248177 A · Owner: Mulz, Robert H. · Inventors: Mulz, Robert H.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A tester for determining basic electronic and circuit information of solid state components. The tester provides indications in 2- and 3-wire devices of short or open conditions, whether a transistor is NPN or PNP type and whether or not an SCR or triac will latch. Both visual and audible indications are provided and cooperatively provide the indications of component quality.

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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

  • Granted January 3, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 3, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 8, 1984
GrantedJanuary 3, 1989
Term endedJanuary 3, 2006
Patent numberCA 1248177 A
Classification (IPC)G01R31/00 +1 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedMay 8, 1984Patent grantedJan 3, 1989Term endedJan 3, 2006

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.