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:
Jan. 19, 1999
Filed:
Dec. 03, 1996
Applicant:
Inventors:
Joseph M DeSimone, Chapel Hill, NC (US);
Esin Gulari, Detroit, MI (US);
Charles Manke, Jr, West Bloomfield, MI (US);
Assignees:
The University of North Carolina at Chapel Hill, Chapel Hill, NC (US);
Wayne State University, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ; B22C / ;
U.S. Cl.
CPC ...
164-5 ; 164 34 ;
Abstract
A structure of CO.sub.2 -insoluble material has a three-dimensional object of CO.sub.2 -soluble material positioned inside. The object is contacted with a fluid containing carbon dioxide which dissolves the object in the fluid. The fluid is then removed to form a cavity in the structure.