Granted Patent
Utility
US 5,584,094 · App. 08/566,035
Dual-pressure extraction cleaner
Inventor:
Russell Gurstein
Patented Case
View Patent ↗
Granted: Dec 17, 1996
Filed: Dec 1, 1995
Inventor
Russell Gurstein
Assignee (at issue)
U.S. Products
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.