Granted Patent
Utility
US 5,832,756 · App. 08/733,840
Lock set for swinging industrial door
Inventor:
Stephen Herman
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Oct 18, 1996
Inventor
Stephen Herman
Assignee (at issue)
Chase Industries, Inc.
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.