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:
Jun. 24, 1980
Filed:
Jun. 27, 1978
Erich Luther, Ronnenberg, DE;
Martin Maelzer, Wunstorf, DE;
Luther & Maelzer GmbH, Wunstorf, DE;
Abstract
A conductor plate and a method for determining the offset between conductor paths and contact holes in the conductor plate. Conductor paths with contact eyes and at least one control mark are simultaneously applied, and, in a later step, contact holes and a control hole for each control mark are simultaneously punched through the conductor plate. Then the position of the control hole is determined relative to its associated control mark. The control mark has at least one curved control path which encloses, on at least one side, a control area of the conductor plate; the control hole is centrally located within the control area when the contact holes are centrally located within their associated contact eyes. Preferably, there are two control marks disposed diagonally opposite each other and pointing in different directions. Each control mark may comprise a group of control paths disposed within one another.