Granted Patent
Utility
US 5,678,900 · App. 08/574,846
Unloader for a source of air under pressure on vehicles
Inventor:
Roland Blanz
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Dec 19, 1995
Inventor
Roland Blanz
Assignee (at issue)
G. Rau GmbH & Co.
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.