Granted Patent
Utility
US 4,329,666 · App. 06/176,630
Two-pole monolithic crystal filter
Inventor:
Aristotelis S. Arvanitis
Patented Case
View Patent ↗
Granted: May 11, 1982
Filed: Aug 11, 1980
Inventor
Aristotelis S. Arvanitis
Assignee (at issue)
Motorola, 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.