Granted Patent
Utility
US 6,394,120 · App. 09/684,231
Method and control system for controlling multiple compressors
Inventor:
Ernest J. Wichert
Patented Case
View Patent ↗
Granted: May 28, 2002
Filed: Oct 6, 2000
Inventor
Ernest J. Wichert
Assignee (at issue)
Scales Air Compressor
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.