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Expired Canadian patentCanada

Environmentally protected housing for using central office protector modules outdoors

CA 1317665 C · Owner: Dawson, Robert H. · Inventors: Dawson, Robert H.; Suffi, Louis

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

Environmentally Protected Housing for Using Central Office Protector Modules Outdoors An environmentally protected housing for receiving a connector block in which a multiplicity of central office protector modules can be mounted. The housing is designed such that its surface area is slightly larger than the surface area of the connector block and when the block and modules are mounted in the housing the top of the modules is just below the cover of the housing. Telephone cables which are used to connect to the cables from the central office and from the subscribers enter the housing and are wired to the rear of the connector block. The connector block is mounted in the housing and the …

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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 11, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 11, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 31, 1988
GrantedMay 11, 1993
Term endedMay 11, 2010
Patent numberCA 1317665 C
Classification (IPC)H04M3/00 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMarch 31, 1988Patent grantedMay 11, 1993Term endedMay 11, 2010

Sources & verification

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