Granted Patent
Utility
US 5,647,617 · App. 08/520,290
Adjustable backset spring latch and deadlocking latch
Inventor:
Pete Kajuch
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Oct 30, 1995
Inventor
Pete Kajuch
Assignee (at issue)
Master Lock Company 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.