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:
Dec. 05, 1995
Filed:
Jan. 21, 1993
Applicant:
Inventors:
Paul M Rosofsky, Willingboro, NJ (US);
Seymour Gilbert, Piscataway, NJ (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L / ; D06M / ; D06P / ;
U.S. Cl.
CPC ...
422 27 ; 8120 ; 8125 ; 8490 ;
Abstract
A method for removing impurities and potentially toxic substances from cellulose is disclosed. The method comprises the following steps: (a) immersing cellulose containing organic extractables in one or more acid baths so as to remove traces of organic extractables; (b) immersing the cellulose in a water bath; (c) immersing the compressed cellulose in an alkaline bath; and (d) sterilizing the treated cellulose using pressurized steam.