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:
Aug. 26, 1997
Filed:
Jul. 05, 1996
Applicant:
Inventors:
Gene P Shumaker, Orlando, FL (US);
Walter B May, Orlando, FL (US);
Assignee:
Martin Marietta Corporation, Bethesda, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
H01Q / ;
U.S. Cl.
CPC ...
342-1 ; 342-4 ;
Abstract
In a radar absorbing material, first or relatively resistive fibers are combined with second or relatively conductive fibers in a dielectric binder. Preferably, the first fibers are graphite filaments and the second fibers are metal coated graphite filaments. The appropriate selection of fibers results in a material having broadband or multi-frequency RF absorbing properties.