Granted Patent
Utility
US 6,550,090 · App. 09/598,330
Surface scrubbing machine
Inventors:
Mongkol Jesadanont, Apijade Jesadanont, Sukanya Jesadanont
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Jun 21, 2000
Inventors
Mongkol Jesadanont
Apijade Jesadanont
Sukanya Jesadanont
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.