Granted Patent
Utility
US 5,680,679 · App. 08/083,530
Buoyant jewelry
Inventor:
David May
Patented Case
View Patent ↗
Granted: Oct 28, 1997
Filed: Jun 30, 1993
Inventor
David May
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.