Granted Patent
Utility
US 6,189,570 · App. 09/371,655
Gas panel
Inventors:
Eric J. Redemann, Kim Ngoc Vu
Patented Case
View Patent ↗
Granted: Feb 20, 2001
Filed: Aug 10, 1999
Inventors
Eric J. Redemann
Kim Ngoc Vu
Assignee (at issue)
Unit Instruments
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.