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:
Oct. 12, 1993
Filed:
Nov. 18, 1991
Applicant:
Inventors:
Carl W Berlin, Bringhurst, IN (US);
John K Isenberg, Rossville, IN (US);
Assignee:
Delco Electronics Corporation, Kokomo, IN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257702 ; 257788 ; 257789 ; 257794 ; 257795 ; 361748 ; 174 522 ;
Abstract
Disclosed is a refractory covercoat composition useful in making two-sided circuitries. The refractory composition contains glass frit, and an inorganic binder including at least one selected from the group consisting of ZrO.sub.2, Al.sub.2 O.sub.3, SiO.sub.2, BaO, CaO, MgO and La.sub.2 O.sub.3. The refractory covercoat has an elevated softening point so that the covercoat protects a printed conductor circuit from damage due to contact with a firing furnace conveyor belt.