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.:

US 8557380 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 15, 2013

Filed:

Jun. 27, 2007
Applicant:

Jean-claude Le Thiesse, Saint-Etienne, FR;

Inventor:

Jean-Claude Le Thiesse, Saint-Etienne, FR;

Assignee:

Rhodia Operations, Aubervilliers, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 (2006.01); C07C 37/68 (2006.01); C07C 39/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

Novel hydroquinone flakes are prepared from a powder thereof, by, if necessary, melting the hydroquinone powder, depositing the hydroquinone in the liquid state as a film on a support made of a material or coated with a material which conducts heat, solidifying the hydroquinone by adjusting the support to an appropriate temperature, and recovering the solidified product in the form of flakes.


Find Patent Forward Citations

Le Thiesse, Jean-Claude. (2013). Form of hydroquinone and production thereof (U.S. Patent No. 8557380). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8557380

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…