Method and apparatus for transporting material
CA 2176589 C · Owner: Thompson, Michael C. · Inventors: Thompson, Michael C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of transporting material includes forming a structural encasement from the material and applying a force to the encasement to transport the material to a desired destination. The structural encasement preferably comprises a column (32) which allows for the transmission of applied forces through the column. A core material (30) may be encased within the column so that both materials are transported together. confinement forces are transmitted throughout the column to maintain the core material encased within the column. The column (32) and the core material (30) may constitute either the same or dissimilar materials and may be transported at either the same or different velocities. …
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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 December 5, 1994 and granted February 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 5, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2016.
- 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.