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:
Mar. 30, 1976
Filed:
Dec. 19, 1973
Applicant:
Inventors:
Robert D Carnahan, Barrington, IL (US);
Karl J Youtsey, Chicago, IL (US);
Assignee:
Universal Oil Products Company, Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C09D / ; H01B / ; H01C / ;
U.S. Cl.
CPC ...
106 26 ; 106 28 ; 106 30 ; 106 32 ; 252506 ; 252507 ; 252508 ; 252511 ; 260 / ; 260 / ; 260 / ;
Abstract
Electrical resistor inks comprising a mixture of a semi-conducting pyropolymeric inorganic material and a transition metal oxide along with a vehicle consisting of a binder such as a synthetic resin or a varnish and a suitable solvent or oil, etc. are useful in forming resistors in electrical circuits, the resistor ink possessing a temperature coefficient of resistance of less than about 500 ppm/.degree. C.