Granted Patent
Utility
US 6,557,900 · App. 09/562,694
Nut locking apparatus
Inventor:
John Austin
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Apr 28, 2000
Inventor
John Austin
Assignee (at issue)
Crane Resistoflex
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.