Granted Patent
Utility
US 6,820,311 · App. 09/922,588
Locking apparatus
Inventor:
Stanley J. Checketts
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Aug 3, 2001
Inventor
Stanley J. Checketts
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.