Granted Patent
Utility
US 6,039,056 · App. 09/155,685
Computer controlled apparatus and method for the cleaning of tanks
Inventor:
Diederik Geert Femme Verbeek
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Oct 2, 1998
Inventor
Diederik Geert Femme Verbeek
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.