Granted Patent
Utility
US 5,985,357 · App. 09/013,113
Treating solution supplying method and apparatus
Inventor:
Masakazu Sanada
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Jan 26, 1998
Inventor
Masakazu Sanada
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.