Ground cover mat
CA 2364923 A1 · Owner: Hetherington, Cory · Inventors: Hetherington, Cory; Duchesne, Lawrence
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ground cover mat includes a planar polygonal frame and having at least three sides. An upper weight bearing surface is supported by the frame and defines a reference plane. A two portion interlock provided which uses a first body and a second body. The first body defines a first receptacle opening upwardly. The first receptacle has a first inclined plane engagement surface that is spaced from the frame and angled at an obtuse angle relative to the reference plane. The second body defines a second receptacle opening downwardly. The second receptacle has a second inclined plane engagement surface that is spaced from the frame and angled at an acute angle relative to the reference plane. In …
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 13, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 13, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2023.
- 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.