Granted Patent
Utility
US 6,513,192 · App. 09/579,833
Vacuum nozzle tool and stain removal method
Inventor:
Dennis Pearlstein
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: May 26, 2000
Inventor
Dennis Pearlstein
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.