Granted Patent
Utility
US 6,173,591 · App. 09/128,049
Security hole fastening device
Inventor:
Jay S. Derman
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Aug 3, 1998
Inventor
Jay S. Derman
Assignee (at issue)
ACCO BRANDS 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.