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:
Jul. 07, 1981
Filed:
Jun. 18, 1979
Applicant:
Inventors:
Joseph Cherenko, Valencia, PA (US);
William I Frey, Curtisville, PA (US);
Joseph D Kelly, Cheswick, PA (US);
Larry S Sokol, West Palm Beach, FL (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; C04B / ;
U.S. Cl.
CPC ...
156242 ; 106 3822 ; 156 99 ; 156289 ; 264338 ;
Abstract
A transparent safety glass laminate having an optically acceptable exposed plastic surface is fabricated by laminating an outer glass sheet and an inner preformed plastic sheet under heat and pressure with the plastic surface to be exposed supported against an optically smooth mold, preferably a second glass sheet, which is coated with an optically smooth coating of a material which acts as a release agent to facilitate separation of the plastic surface from the mold after lamination.