Granted Patent
Utility
US 5,520,188 · App. 08/333,471
Annular array transducer
Inventors:
Carl W. Hennige, Stan DeMarta, Claudio I. Zanelli
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: Nov 2, 1994
Inventors
Carl W. Hennige
Stan DeMarta
Claudio I. Zanelli
Assignee (at issue)
Focus Surgery, Inc.
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.