Granted Patent
Utility
US 4,829,374 · App. 07/119,826
Surface inspection apparatus
Inventors:
Seiichi Miyamoto, Masaru Hanatani, Yo Tajima
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Nov 12, 1987
Inventors
Seiichi Miyamoto
Masaru Hanatani
Yo Tajima
Assignee (at issue)
Kanzaki Paper Manufacturing 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.