Granted Patent
Utility
US 4,485,364 · App. 06/495,376
Reflection-compensated surface acoustic wave transducer
Inventor:
Adrian J. DeVries
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: May 17, 1983
Inventor
Adrian J. DeVries
Assignee (at issue)
Zenith Electronics LLC
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.