Granted Patent
Utility
US 6,572,769 · App. 09/951,479
Water treatment apparatus
Inventors:
Rajan G. Rajan, Mathu Rajan
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Sep 14, 2001
Inventors
Rajan G. Rajan
Mathu Rajan
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.