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:
Sep. 27, 1988
Filed:
Dec. 14, 1987
Applicant:
Inventors:
Michael J Cannarsa, Lafayette Hill, PA (US);
Haven S Kesling, Jr, Drexel Hill, PA (US);
Hsiang-Ning Sun, Media, PA (US);
Assignee:
ARCO Chemical Company, Newtown Square, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22C / ;
U.S. Cl.
CPC ...
164 45 ; 164 34 ;
Abstract
The evaporative casting of molten metals has been shown to produce castings having smooth surfaces without any sign of carbon deposits thereon by using a copolymer polycarbonate prepared from cyclohexene oxide, cyclopentene oxide, cycloheptene oxide, or isobutylene oxide and carbon dioxide.