System and arrangement for conduit reparation
CA 2783171 C · Owner: Underground Solutions Technologies Group, Inc. · Inventors: Thomas, Marti; Smith, Mark A.; St. Onge, Bryan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a system (10) and arrangement for conduit expansion for use in expanding a liner conduit (12) within a host conduit (14). The system (10) includes injection hardware (24) positioned on a first end (20 16) of the liner conduit (12) and the host conduit (14) and distal end cap hardware (26) positioned on a second end (18 22) of the host conduit (14) and liner conduit (12). Both the injection hardware (24) and the distal end cap hardware (26) are in communication with a control mechanism (30) for use in monitoring and/or controlling the operating parameters of the system (10).
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 June 14, 2004 and granted March 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 14, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 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.