Granted Patent
Utility
US 6,097,829 · App. 08/955,254
Fiber-honeycomb-fiber sandwich speaker diaphragm and method
Inventors:
Edward W. Guenther, Stephen Andrew Leigh
Patented Case
View Patent ↗
Granted: Aug 1, 2000
Filed: Oct 21, 1997
Inventors
Edward W. Guenther
Stephen Andrew Leigh
Assignee (at issue)
Precision Power, 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.