Granted Patent
Utility
US 6,618,136 · App. 09/390,690
Method and apparatus for visually inspecting transparent body and translucent body
Inventor:
Futoshi Ishida
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Sep 7, 1999
Inventor
Futoshi Ishida
Assignee (at issue)
Minolta 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.