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:
Apr. 23, 1996
Filed:
Mar. 30, 1995
Applicant:
Inventors:
Masaharu Shirai, Ohtsu, JP;
Shuhei Tsuchita, Kusatsu, JP;
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
174266 ; 174261 ; 174262 ;
Abstract
A blind hole extending from upper or surface wiring of a printed circuit board to inner or lower wiring, and having an opening larger than the bottom, is formed on a substrate, and a conductor pattern is formed on the bottom and the internal wall of the blind hole to connect the inner wiring with the surface wiring.
Shirai, Masaharu. (1996). Printed circuit board with landless blind hole for connecting an upper (U.S. Patent No. 5510580). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5510580
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile