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:
Oct. 22, 2024
Filed:
Sep. 21, 2020
Covestro Intellectual Property Gmbh & Co. KG, Leverkusen, DE;
Torsten Thust, Wermelskirchen, DE;
Thorsten Schulz, Leverkusen, DE;
Rainer Hagen, Leverkusen, DE;
Ciro Piermatteo, Leverkusen, DE;
Marius Rogowski, Frechen, DE;
Armin Berger, Langenfeld, DE;
Jan Helmig, Dormagen, DE;
Covestro Intellectual Property GmbH & Co. KG, Leverkusen, DE;
Abstract
A lighting unit which includes a multilayer body and at least a first light emitting diode (LED) light source. The multilayer body includes, in sequence, a carrier layer of a black or gray translucent thermoplastic composition, a stone layer with an average thickness of 2 mm of less, and a transparent thermoplastic layer with an average thickness of 1 mm to 6 mm. The LED light source is disposed facing at least one lateral edge of the transparent thermoplastic layer, such that light from the LED light source is guided within the transparent thermoplastic layer.