Granted Patent
Utility
US 4,457,569 · App. 06/362,454
Lock arrangement for office furniture units
Inventor:
Douglas Scheerhorn
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Mar 26, 1982
Inventor
Douglas Scheerhorn
Assignee (at issue)
Steelcase 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.