Sod or other vegetation and a method of producing the same
CA 2275181 C · Owner: Kumar, Vijayendra · Inventors: Kumar, Vijayendra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sod (10) comprising a root support matrix (18) that itself comprises a mixture of soil and/or sand, and shredded carpet fragments (22) wherein the , shredded carpet fragments (22) are from about one-tenth percent (0.1 %) to about five percent (5.0 %) by weight of the matrix (18); and a plurality of plants (14) growing in said root support matrix (18) said plants (14) having , roots entangled with said shredded carpet fragments (22). The shredded carpet fragments (22) comprise a mass of entangled face yarns some of which yarns have bits of carpet backing material attached thereto wherein at least about , ninety percent (90 %) and more preferably at least about ninety-five percent (95 …
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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 January 26, 1998 and granted January 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 26, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 26, 2020.
- 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.