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:
Nov. 04, 2014
Filed:
Sep. 01, 2011
Miroslav Rada, Sta{hacek over (n)}kov, CZ;
Kv{hacek Over (E)}ta Sázavová, Jablonec nad Nisou, CZ;
Jan Ko{hacek Over (R)}enský, Jablonec nad Nisou, CZ;
Ji{hacek Over (R)}i Vav{hacek Over (R)}ena, Semily, CZ;
Miroslav Rada, Sta{hacek over (n)}kov, CZ;
Kv{hacek over (e)}ta Sázavová, Jablonec nad Nisou, CZ;
Jan Ko{hacek over (r)}enský, Jablonec nad Nisou, CZ;
Ji{hacek over (r)}i Vav{hacek over (r)}ena, Semily, CZ;
Preciosa A.S., Jablonec nad Nisou, CZ;
Abstract
This invention relates to a crystal glass having a refractive index higher than 1.53 and a high mechanical strength, free of any content of compounds of lead, barium and arsenic and guaranteeing maximum safety for health, which consists in that it comprises by weight: 55-70% SiO, 0.05-3.5% LiO, 2-15% NaO, more than 3% and less than 5% or more than 15% and less than 19% KO, 5 to 10% CaO, more than 1% and less than 4% or more than 7% and less than 8% ZnO, 0.1-3.5% BO, 0.1-3.5% AlO, 0.1-3.5% TiO, less than 3.5% ZrO, 0.05-1.5% GdO,0.05-1% PO, 0.1-1% SbO.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile