Granted Patent
Utility
US 5,259,888 · App. 07/830,688
Process for cleaning quartz and silicon surfaces
Inventor:
Scott McCoy
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Feb 3, 1992
Inventor
Scott McCoy
Assignee (at issue)
SACHEM, INC.
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.