Granted Patent
Utility
US 5,954,271 · App. 08/821,171
Fluid driven tank cleaning apparatus
Inventor:
Minh Q. Le
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Mar 21, 1997
Inventor
Minh Q. Le
Assignee (at issue)
Gamajet Cleaning Systems Inc.
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.