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. 26, 2002
Filed:
Aug. 23, 2001
Applicant:
Inventors:
Neena Gandhi, Edmonton, CA;
James Kenneth Laidler, Edmonton, CA;
Assignee:
Alberta Research Council Inc., Edmonton, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B 3/708 ;
U.S. Cl.
CPC ...
C08B 3/708 ;
Abstract
A method of producing glucosamine hydrochloride from chitin by grinding the chitin to a very fine size and digestion with concentrated hydrochloric acid. The glucosamine hydrochloride is decolorized with activated charcoal, washed with ethanol and assayed by pH titration with a base.