Granted Patent
Utility
US 5,146,863 · App. 07/779,795
Air cushion displacement hull water vehicle
Inventor:
Allen G. Ford
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Oct 21, 1991
Inventor
Allen G. Ford
Assignee (at issue)
The United States of America, as represented by the Secretary of the Navy
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.