Soil sampling device
CA 2279782 A1 · Owner: Yazdani, Saeid · Inventors: Yazdani, Saeid; David, Raymond R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A soil sampling device for collecting samples of soil provides a single use unit, with an integrally molded plunger. The soil sampling device includes a cylindrical body having, a first chamber and a second chamber with each chamber comprising a , cylindrical wall having a longitudinal axis and an end wall. Optionally the sampling device may include , additional chambers depending on the application. An open end of each chamber defines a mouth which is, adapted for inserting into soil. A piston may be positioned within each chamber, and the end, walls include a projecting member extending outwardly therefrom which defines a plunger. The, end wall includes a reduced cross-section around …
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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 August 6, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 6, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 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.