Expired Canadian patentCanada
Ground stabilization structure
CA 1071419 A · Owner: Doring, Erich · Inventors: Doring, Erich
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ground stabilization structure for terrain slopes of mat-like form is provided consisting of interconnected body elements which are annular tread strips from worn, used or discarded tires from which the sidewalls are separated. - 1 -
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
- Granted February 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedFebruary 12, 1980
Term endedFebruary 12, 1997
Patent numberCA 1071419 A
Classification (IPC)E02D3/12 +2 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.