Granted Patent
Utility
US 6,530,998 · App. 09/702,746
Formed article of amorphous alloy having hardened surface and method for production thereof
Inventor:
Hitoshi Oofune
Patented Case
View Patent ↗
Granted: Mar 11, 2003
Filed: Nov 1, 2000
Inventor
Hitoshi Oofune
Assignee (at issue)
YKK Corporation
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.