Granted Patent
Utility
US 5,604,891 · App. 08/330,160
3-D acoustic infinite element based on a prolate spheroidal multipole expansion
Inventors:
David Storer Burnett, Richard Lovell Holford
Patented Case
View Patent ↗
Granted: Feb 18, 1997
Filed: Oct 27, 1994
Inventors
David Storer Burnett
Richard Lovell Holford
Assignee (at issue)
LUCENT TECHNOLOGIES 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.