Goods comprising two or more precious stones cut from the same rough stone
CA 2343448 A1 · Owner: Tcharnaia, Irina · Inventors: Tcharnyi, Leonid; Tcharnaia, Irina
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A new principal for marketing and manufacturing of the goods comprising polished gemstones is, disclosed. The goods such as sets of two or more loose polished gems or jewelry articles contained, set in gems that are cut from the same one rough stone. It provides consumers with higher, emotional value of the items such as engagement and wedding rings and manufacturers with a, method of adding higher value and usage of the rough gemstone material as well as new possibilities, for promoting the sale of the loose gems or jewelry production.
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 2, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 2, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2023.
- 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.