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Expired Canadian patentCanada

Switching fusible apparatus

CA 1301223 C · Owner: Connectron, Inc. · Inventors: Norden, Alexander R.

CIPO record

Overview

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

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Abstract From the Canadian patent

The disclosed switching fusible apparatus includes a fuse holder receivable in a receptacle and rotatable to "ON", "OFF" and "RELEASE" positions. The fuse holder can contain a first fuse and it may instead, contain an adapter which, in turn contains a shorter, fuse. A slot in the exposed end of the fuse holder receives a screw-driver for selectively turning the fuse holder when tool-operable apparatus is required or a, knob is interlocked with the slot in high-profile apparatus. Contact is made to each metal end cap of each fuse in the "ON" position of the fuse holder by a contact tab that is not significantly yielding per se but which is rendered prominently resilient by oppositely …

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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 May 19, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 8, 1989
GrantedMay 19, 1992
Term endedMay 19, 2009
Patent numberCA 1301223 C
Classification (IPC)H01H85/54

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedFeb 8, 1989Patent grantedMay 19, 1992Term endedMay 19, 2009

Sources & verification

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