Sheet for growing grass seeds and grass seed mat using same
CA 2407550 A1 · Owner: Huh, Kyung · Inventors: Huh, Kyung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sheet for sprouting of grass seed and for safeguarding early grass growth and an improved mat containing such sheet for growing lawns or other vegetation on soil. The sheet for of a transparent vinyl plastic such as polyethylene a plurality specific size of ventilation openings. The ventilating openings, depending upon the sowing season of the grass seeds with approximately 3.5 cm to 4.5 cm distance and 9 mm to 15 mm diameters. A , plurality of sheets exist below the vinyl sheet and are comprised of a viscous cellulose fiber sheet, a planting sheet containing the seeds and fertilizer and a fibrous ground protective sheet. Optionally a further sheet may be , added for weed or insect …
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 April 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 20, 2022.
- 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.