Granted Patent
Utility
US 5,491,671 · App. 07/129,411
Sonar transducer with unitary isolator
Inventor:
Allan F. Potter
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Nov 27, 1987
Inventor
Allan F. Potter
Assignee (at issue)
Alliant Techsystems 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.