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:
Mar. 04, 1991
Filed:
Sep. 12, 1989
Applicant:
Inventors:
Donald W Eckart, Wall, NJ (US);
Joel R Shappirio, Ocean, NJ (US);
Assignee:
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250304 ;
Abstract
A material sample is rubbed with an abrasive material until streaking appears in the abrasive indicating that the material sample has become embedded in the abrasive and the abrasive material then analyzed using qualitative and quantitative chemical analysis.