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:
May. 12, 1998
Filed:
Dec. 18, 1995
Applicant:
Inventors:
June-Sang Siak, Troy, MI (US);
Scott William Biederman, Troy, MI (US);
William Thomas Whited, Saginaw, MI (US);
Mark Allen Datte, Auburn, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ; B22C / ;
U.S. Cl.
CPC ...
164 23 ; 164138 ; 427134 ;
Abstract
Refractory coated gelatin-bonded foundry sand core made by waterproofing the surface of the core and immersing the waterproofed core in an aqueous refractory suspension to deposit the refractory.