Tubular slip device and method
CA 2492209 C · Owner: Forum Us, Inc. · Inventors: Ramey, Joe Stewart; Leblanc, Wilson Andrew, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tubular handling device (2) includes a first slip (4) having an arcuate inner face (6) that has a first longitudinally disposed slot (54) and a first ledge (70) therein. A second slip (20) is connected to the first slip with , the second having an arcuate inner face that has a second longitudinally disposed slot and a second ledge therein. A third slip (38) is connected to the second slip, with the third slip having an arcuate inner face that has a third longitudinally disposed slot and a third ledge therein. The device further comprises a first insert (90a, 90c) having a first shoulder (102a) is configured to fit within the first ledge. A second insert having a second shoulder is …
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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 July 9, 2003 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 9, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 9, 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.
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.