Granted Patent
Utility
US 6,138,695 · App. 09/180,032
Substrate processing apparatus
Inventors:
Takuya Shibao, Toshiyuki Osaki, Koji Hasegawa
Patented Case
View Patent ↗
Granted: Oct 31, 2000
Filed: Oct 30, 1998
Inventors
Takuya Shibao
Toshiyuki Osaki
Koji Hasegawa
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.