Granted Patent
Utility
US 4,821,986 · App. 07/151,918
Multiple leg furniture base
Inventor:
Winsor D. White
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Feb 3, 1988
Inventor
Winsor D. White
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.