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:
Nov. 12, 1985
Filed:
Sep. 27, 1982
Applicant:
Inventors:
Matthew S Brennensholtz, Waterloo, NY (US);
Robert L Donofrio, Elbridge, NY (US);
Assignee:
North American Philips Consumer Electronics Corp., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356448 ;
Abstract
A device and method for measuring the reflectivity of the tungsten oxide surface coating on cathode ray tube heaters are described, in which selected small areas of an illuminated heater wire turns are scanned by a microscope, and the collected reflected light converted to voltage values by a photomultiplier tube and compared to a standard value.