Granted Patent
Utility
US 5,520,427 · App. 08/173,883
Breakaway lever with wedge release mechanism
Inventor:
Gerald E. Mader
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Dec 27, 1993
Inventor
Gerald E. Mader
Assignee (at issue)
Von Duprin LLC
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.