Granted Patent
Utility
US 5,484,187 · App. 08/226,013
Chair armrest adjustment mechanism
Inventors:
Frank Doerner, William S. Stumpf
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: Apr 11, 1994
Inventors
Frank Doerner
William S. Stumpf
Assignee (at issue)
Doerner Products Ltd.
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.