Granted Patent
Utility
US 4,454,442 · App. 06/514,269
Piezoelectric relay using Euler lever
Inventor:
Michael B. Hosking
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Jul 15, 1983
Inventor
Michael B. Hosking
Assignee (at issue)
General Dynamics Corporation, Electronics Division
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.