Patent Yard Sign in
Expired Canadian patentCanada

Optical fiber distribution module, optical fiber cord and fiber distribution system

CA 2278259 C · Owner: Nakao, Naoki · Inventors: Mine, Koji; Takemoto, Hajime; Nakao, Naoki

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

An optical fiber distribution module achieves high density of connections on one board yet prevents fiber cord tangling created by repeated connection/disconnection of cords. The module has a connection board with an array of optical connector adaptors for connecting in-use optical fiber cords and a storage section for storing not-in use optical fiber cords where a plurality of cord sorting boards having a plurality of fiber cord passageways for accommodating and retaining at least one optical fiber cord is arranged between the connection board and the storage section. This design of the board enables to organize groups of cords into in-use cords and not-in-use cords. The load on the cords …

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

  • Filed July 21, 1999 and granted October 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 21, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 21, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 21, 1999
GrantedOctober 7, 2003
Term endedJuly 21, 2019
Patent numberCA 2278259 C
Classification (IPC)G02B6/46 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJuly 21, 1999Patent grantedOct 7, 2003Term endedJuly 21, 2019

Sources & verification

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