Granted Patent
Utility
US 5,273,713 · App. 07/901,961
Water purification and sterilization process
Inventor:
Guy Levy
Patented Case
View Patent ↗
Granted: Dec 28, 1993
Filed: Jun 22, 1992
Inventor
Guy Levy
Assignee (at issue)
Laser Medical Technology, Inc.
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.