Granted Patent
Utility
US 4,404,489 · App. 06/203,409
Acoustic transducer with flexible circuit board terminals
Inventors:
John D. Larson, III, David G. Miller
Patented Case
View Patent ↗
Granted: Sep 13, 1983
Filed: Nov 3, 1980
Inventors
John D. Larson, III
David G. Miller
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.