Granted Patent
Utility
US 6,038,891 · App. 09/048,874
Security hole fastening device
Inventors:
Greg Zeren, Jay S. Derman
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Mar 26, 1998
Inventors
Greg Zeren
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.