Granted Patent
Utility
US 6,552,559 · App. 09/981,651
IC tester adjusting unit
Inventor:
Katsuaki Hiromatsu
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Oct 16, 2001
Inventor
Katsuaki Hiromatsu
Assignee (at issue)
Ando Electric Co., Ltd.
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.