Granted Patent
Utility
US 6,606,574 · App. 09/876,234
Quality control method for product production apparatus
Inventor:
Naoko Takanabe
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Jun 8, 2001
Inventor
Naoko Takanabe
Assignee (at issue)
MITSUBISHI ELECTRIC 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.