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Expired Canadian patentCanada

Modular cable

CA 2040726 C · Owner: Arroyo, Candido John · Inventors: Arroyo, Candido John; Gotthardt, Manfred R.

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

An undercarpet cable (40) includes a plurality of longitudinally extending interlocking segments (42-42). The segments are designed each to have an optical fiber (33) housed therein or when interlocked in an assembly to provide a longitudinally extending cavity for receiving an optical fiber. The assembly of segments is capable of being routed along at least two paths which are normal toeach other. Advantageously longitudinal relative motion between adjacent ones of the segments and between the optical fiber and the segments is allowed. As a result the cable may be routed in tortuous paths under a carpet to service workstations as desired.

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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 April 17, 1991 and granted June 30, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 17, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 17, 1991
GrantedJune 30, 1998
Term endedApril 17, 2011
Patent numberCA 2040726 C
Classification (IPC)G02B6/44 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedApril 17, 1991Patent grantedJune 30, 1998Term endedApril 17, 2011

Sources & verification

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