Granted Patent
Utility
US 5,962,788 · App. 08/791,731
Transducer
Inventor:
John Neville Fawcett
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Jan 31, 1997
Inventor
John Neville Fawcett
Assignee (at issue)
BTG INTERNATIONAL 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.