Granted Patent
Utility
US 5,213,295 · App. 07/708,188
Two-way actuator for a chair height adjustment mechanism
Inventors:
Brian L. Scholten, James E. Massey
Patented Case
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Granted: May 25, 1993
Filed: May 31, 1991
Inventors
Brian L. Scholten
James E. Massey
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.