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. 14, 2003
Filed:
Sep. 14, 2001
Applicant:
Inventors:
James Wooten, Bayou La Batre, AL (US);
Norman S. Singer, Highland Park, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B 3/708 ; C07H 1/06 ; C07H 1/08 ;
U.S. Cl.
CPC ...
C08B 3/708 ; C07H 1/06 ; C07H 1/08 ;
Abstract
Chitin is extracted from the shells of exoskeletal animals such as crab, shrimp, crayfish, and lobster, by a primarily physical process comprising the step of cutting the shells in a wet state to approximately uniform particles. The resultant mass is then diluted and mixed to form a pumpable slurry. The slurry is separated to remove most unwanted materials, after which the particle size of the concentrated chitinous residue is further reduced. The once-washed, finely-cut chitinous slurry is again separated, resulting in a chitin end product.