Granted Patent
Utility
US 5,458,779 · App. 07/927,628
Method for purification of water
Inventor:
Hallvard Odegaard
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Aug 28, 1992
Inventor
Hallvard Odegaard
Assignee (at issue)
Kaldnes Miljoteknologi AS
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.