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. 25, 1991
Filed:
Jul. 24, 1987
Applicant:
Inventors:
Helmut Franz, Pittsburgh, PA (US);
James H Hanlon, Pittsburgh, PA (US);
Lloyd G Shick, Natrona Heights, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B32B / ; B32B / ; B65D / ;
U.S. Cl.
CPC ...
428323 ; 65169 ; 215 122 ; 215D / ; 427154 ; 427165 ; 427180 ; 4273897 ; 428327 ; 428428 ; 428441 ;
Abstract
A method is disclosed providing temporary protection of a glass surface from staining and scratches by coating the exposed surface with a soluble polymer film incorporating spacer particles of an inert material.