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:
Jan. 26, 1993
Filed:
Dec. 18, 1991
Applicant:
Inventors:
Harry S Koontz, Pittsburgh, PA (US);
John P Forr, Altoona, PA (US);
Assignee:
PPG Industries, Inc., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219203 ; 219547 ; 219522 ; 219543 ;
Abstract
An electrical resistance heated window having at least three heatable zones and at least one of the heatable zones is generally centrally located on the window and can be heated faster to a higher temperature than the other of the zones for faster defogging and deicing of that particular zone.