Surface inlaid fibre optic network installations
CA 2532644 C · Owner: Teraspan Networks Inc. · Inventors: Dofher, Darren
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for protecting buried optic fibre nodes which permits surface inlay installation of cable without the need to expose free ends of the cable for threading through any apertures, includes a protective housing (10) composed of spaced apart panels (14,16) which define an interior space. The panels open to expose the interior for installation of a length of cable (50) therein. An insert (30) fits within the space, which includes a channel (38) which is exposed when the panels (14,16) open for insertion of a cable. The insert includes a void (32) to receive a cable junction box (34). A removable protective outer casing may be provided either in the form of a pair of outer walls …
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 16, 2004 and granted March 18, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 16, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 16, 2026.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.