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. 30, 2011
Filed:
Oct. 04, 2007
Applicants:
Joe K. Cochran, Jr., Marietta, GA (US);
Thomas J. Pavliscak, Palos Verdes, CA (US);
Carol Ann Wedding, Toledo, OH (US);
Inventors:
Joe K. Cochran, Jr., Marietta, GA (US);
Thomas J. Pavliscak, Palos Verdes, CA (US);
Carol Ann Wedding, Toledo, OH (US);
Assignee:
Imaging Systems Technology, Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/267 (2006.01);
U.S. Cl.
CPC ...
Abstract
An ultra strong, hollow sintered, impervious, metallic shell for use in structural applications including proppants for hydraulic fracturing. The shell is made of a maraging steel, low alloy steel, or stainless steel with a crush strength of about 3,000 psi or greater and a density of about 0.6 g/cmto about 2.5 g/cm.