Granted Patent
Utility
US 5,910,772 · App. 08/908,918
Pool alarm
Inventor:
Joseph Hui
Patented Case
View Patent ↗
Granted: Jun 8, 1999
Filed: Aug 8, 1997
Inventor
Joseph Hui
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.