The Sea Shadow was built by Lockheed Martin in 1985 in Redwood City as a way to test radar-cloaking technology at sea.
Two years before the military deployed the F-117 Nighthawk, a stealth attack jet, and the Navy was interested to see if the technology could work in the ocean.
The lessons learned from the vessel, which from the front looks like letter "A," are used in modern warship design.
Navy spokesman Christopher Johnson said a museum home for Sea Shadow was sought, but no one was interested.