Patent · US Expired

Printed circuit

US4319217A · kind A · utility

2Cited by

1References

19Claims

0Family size

Assignees

Preh, Elektrofeinmechanische Werke · DE
Jacob Preh Nachf. GmbH & Co. · DE

Inventors

Peter Ambros · Leutershausen, DE
Erich Gatzke · Bad Neustadt an der Saale, DE

Key dates

Filing date	Mar 22, 1979
Grant date	Mar 9, 1982
Priority date	—
Expiry date	Mar 22, 1999

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49099
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The invention concerns a printed circuit with electrically conductive, solderable conductors and integrated resistance layers upon a nonconductive substrate, in certain surface patterns.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.