Granted Patent
Utility
US 6,568,995 · App. 09/699,339
Method for cleaning glass substrate
Inventors:
Kazuishi Mitani, Yasuhiro Saito
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Oct 31, 2000
Inventors
Kazuishi Mitani
Yasuhiro Saito
Assignee (at issue)
NIPPON SHEET GLASS COMPANY, LIMITED
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.