Handling apparatus
CA 2193057 C · Owner: Smith, Donald R. · Inventors: Smith, Donald R.; Miller, Darin R.; Lewis, Billy M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile, self-propelled, multicapability apparatus useful for gripping, lifting, moving, rotating, and otherwise manipulating heavy articles. The inventive apparatus comprises: a base structure; a turret rotatably attached to the base structure; a first boom structure having a first end portion pivotably attached to the turret; a second boom structure having a first end portion pivotably connected to the distal end portion of the first boom structure; a first hydraulic assembly for pivoting the first boom structure with respect to the turret; a second hydraulic assembly for pivoting the second boom structure with respect to the first boom structure; a head assembly having a first end …
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 December 16, 1996 and granted September 14, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2018.
- 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.