Granted Patent
Utility
US 4,703,909 · App. 06/911,477
Ergonomic equipment arm
Inventors:
Douglas C. Dayton, John D. Ardito
Patented Case
View Patent ↗
Granted: Nov 3, 1987
Filed: Sep 25, 1986
Inventors
Douglas C. Dayton
John D. Ardito
Assignee (at issue)
Wang Laboratories, 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.