Agent for covering a soil surface
CA 2347157 A1 · Owner: Lac Holding B.V. · Inventors: Adriaanse, Cornelis Theodorus Jozef Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an agent for covering a soil surface containing , water, coal-black, a binding agent a strengthening agent and fibres, wherein the agent contains a copolymer of at least one alkene and at least one ester of an alkenoic acid as strengthening agent. Further the invention relates to , a process for preventing the growth of weeds by using the agent. Finally the , invention relates to a spraying installation for spraying a fluid agent for covering a soil surface.
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 October 18, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 2021.
- 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.