Canadian application, no grantCanada
Collapsible expansion cone
CA 2478868 A1 · Owner: Enventure Global Technology · Inventors: Brisco, David Paul; Watson, Brock Wayne
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for radially expanding and plastically deforming an expandable tubular member (66) includes a collapsible expansion cone (44).
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 February 19, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 19, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 19, 2003
GrantedNo grant recorded
Term endedFebruary 19, 2023
Patent numberCA 2478868 A1
Classification (IPC)E21B23/04 +1 more
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.