Granted Patent
Utility
US 5,069,309 · App. 07/413,694
Rolling tower scaffold and method and tooling apparatus for manufacturing the same
Inventors:
Paul R. Swiderski, Paul J. Seadler
Patented Case
View Patent ↗
Granted: Dec 3, 1991
Filed: Sep 28, 1989
Inventors
Paul R. Swiderski
Paul J. Seadler
Assignee (at issue)
Emerson Electric Co.
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.