Granted Patent
Utility
US 6,359,237 · App. 09/637,684
Multi-layer printed board
Inventors:
Hirokazu Tohya, Shiro Yoshida
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Aug 14, 2000
Inventors
Hirokazu Tohya
Shiro Yoshida
Assignee (at issue)
NEC CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.