Granted Patent
Utility
US 4,473,214 · App. 06/418,622
Luffing jib for construction crane
Inventors:
Russell L. Sterner, Reginald P. Whittingham
Patented Case
View Patent ↗
Granted: Sep 25, 1984
Filed: Sep 16, 1982
Inventors
Russell L. Sterner
Reginald P. Whittingham
Assignee (at issue)
Kidde Holding, 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.