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:
Jun. 23, 1981
Filed:
Dec. 31, 1979
Applicant:
Inventors:
William I Frey, Curtisville, PA (US);
William R Beestrice, New Kensington, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 24 ; 65 27 ; 6537 / ;
Abstract
An improved release surface for a laminating mold is disclosed wherein a glass mold surface is treated with methylchlorosilane to provide a release surface which is then polished with a polar solvent such as alcohol to remove oily residue from the release surface of the mold so that the surface of the released article is free from haze.