Granted Patent
Utility
US 4,863,771 · App. 07/136,187
Hollow fiber reinforced structure and method of making same
Inventor:
Richard B. Freeman
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Dec 21, 1987
Inventor
Richard B. Freeman
Assignee (at issue)
The Budd Company
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.