Granted Patent
Utility
US 6,293,963 · App. 09/487,641
Water energizing device for shower bath
Inventor:
Albert Chin-Tang Wey
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Jan 19, 2000
Inventor
Albert Chin-Tang Wey
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.