The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2024
Filed:
Aug. 17, 2021
Glass ceramic material of a spinel type for the production of fashion jewellery and jewellery stones
Preciosa, A.s., Jablonec nad Nisou, CZ;
Rostislav Krátký, P{hacek over (e)}n{hacek over (c)}ín, CZ;
Jakub Alt{hacek over (s)}míd, Frýdlant, CZ;
Romana Kalu{hacek over (z)}ná, Jeni{hacek over (s)}ovice, CZ;
PRECIOSA, A.S., Jablonec Nad Nisou, CZ;
Abstract
Glass ceramic material for the production of synthetic stones in fashion jewellery and jewellery, having excellent mechanical properties, chemical and heat resistance, harmless due to absence of lead, arsenic and cadmium compounds, available in a broad scale of colour designs, imitating faithfully natural precious stones thanks to high content of spinel crystalline phase and lowered content of SiO, consisting of (in weight %): 20-40% SiO, 1.5-10% BO, 20-35% AlO, 0.1-20% MgO, 0.1-20% ZnO, the content of MgO+ZnO being at least 10%, preferably also 0-15% TiO, 0.1-15% ZrO, the content of TiO+ZrObeing at least 5%, more preferably also 0-20% of colouring additives in the form of CoO, NiO, CuO, FeO, MnO, CrO, VO, PrO, CeO, NdO, ErO, AgO and Au.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile