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. 22, 1991
Filed:
Dec. 31, 1990
Applicant:
Inventors:
Hugh R Carlon, Fallston, MD (US);
Mark A Guelta, White Marsh, MD (US);
Bernard V Gerber, Havre de Grace. all of, MD (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09F / ;
U.S. Cl.
CPC ...
2524081 ; 252305 ; 356336 ; 73 40 ;
Abstract
An improved method of testing a particulate filter. This is accomplished by assing a salt nucleus coated with a composition containing a poly-alpha olefin having chain length in %, by volume, of about 97-99% of 20 carbon atoms, and about 3% of 30 carbon atoms.