Granted Patent
Utility
US 5,114,494 · App. 07/517,997
Mask washing system and method
Inventor:
Thomas M. Remec
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: May 2, 1990
Inventor
Thomas M. Remec
Assignee (at issue)
Zenith Electronics LLC
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.