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:
Feb. 21, 1995
Filed:
Nov. 02, 1993
Applicant:
Inventors:
Assignee:
Eniricerche S.p.A., Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; B01J / ;
U.S. Cl.
CPC ...
502425 ; 502426 ; 502437 ;
Abstract
A process for preparing activated charcoal having a high surface area is described, including a thermal treatment, in the presence of phosphoric acid, of regenerated humic acids.