Granted Patent
Utility
US 5,701,627 · App. 08/720,317
Substrate processing apparatus
Inventors:
Yoshio Matsumura, Katsumi Shimaji
Patented Case
View Patent ↗
Granted: Dec 30, 1997
Filed: Sep 27, 1996
Inventors
Yoshio Matsumura
Katsumi Shimaji
Assignee (at issue)
DAINIPPON SCREEN MFG. 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.