Granted Patent
Utility
US 4,948,070 · App. 07/043,154
Inflatable external fuel tank
Inventor:
Richard R. Lyman
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Apr 27, 1987
Inventor
Richard R. Lyman
Assignee (at issue)
TRE 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.