Granted Patent
Utility
US 4,352,434 · App. 06/145,529
Pendant supported hydraulic extensible boom
Inventor:
Darwin N. Poock
Patented Case
View Patent ↗
Granted: Oct 5, 1982
Filed: May 1, 1980
Inventor
Darwin N. Poock
Assignee (at issue)
FMC CORPORATION
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.