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:
Jun. 18, 1985
Filed:
Feb. 18, 1983
Applicant:
Inventors:
Charles L Christianson, Laurel, MD (US);
Richard Spurlock, Wheaton, MD (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G21F / ;
U.S. Cl.
CPC ...
2504971 ; 2502521 ; 2505061 ; 2505221 ;
Abstract
A device for shielding a radiation source that is adapted to selectively position the source to be stored and shipped or positioned for repetitively establishing a radiation field for calibrating radiation detection devices.