Granted Patent
Utility
US 6,440,909 · App. 09/544,489
Cleaning article used in the absence of a water source
Inventor:
Eric Vignot
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Apr 7, 2000
Inventor
Eric Vignot
Assignee (at issue)
Laboratories Prodene-Klint
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.