Granted Patent
Utility
US 4,434,021 · App. 06/394,747
Reverse building process for the manufacture of complex-shaped vehicle fuel tanks
Inventors:
Keith D. Robinson, George P. Smitley
Patented Case
View Patent ↗
Granted: Feb 28, 1984
Filed: Jul 2, 1982
Inventors
Keith D. Robinson
George P. Smitley
Assignee (at issue)
Goodyear Aerospace 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.