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:
Mar. 23, 1999
Filed:
Feb. 20, 1998
Applicant:
Inventors:
Yucong Wang, Saginaw, MI (US);
Peter Vernia, Rochester Hills, MI (US);
Simon Chin-Yu Tung, Rochester Hills, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
1231936 ; 92223 ;
Abstract
A reciprocating engine having an aluminum engine block, and an aluminum piston wherein the piston's skirt has a hard anodized first layer directly on the aluminum and a composite polymer coating atop the hard anodized layer.