Granted Patent
Utility
US 6,363,285 · App. 09/488,869
Therapeutic sleeping aid device
Inventor:
Albert Chin-Tang Wey
Patented Case
View Patent ↗
Granted: Mar 26, 2002
Filed: Jan 21, 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.