Granted Patent
Utility
US 4,456,212 · App. 06/466,154
Height adjustable furniture support
Inventor:
William B. Raftery
Patented Case
View Patent ↗
Granted: Jun 26, 1984
Filed: Feb 14, 1983
Inventor
William B. Raftery
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.