Granted Patent
Utility
US 5,587,620 · App. 08/171,227
Tunable thin film acoustic resonators and method for making the same
Inventors:
Richard C. Ruby, Paul Merchant
Patented Case
View Patent ↗
Granted: Dec 24, 1996
Filed: Dec 21, 1993
Inventors
Richard C. Ruby
Paul Merchant
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.