Granted Patent
Utility
US 4,313,185 · App. 06/108,861
Acoustic vibration sensor and sensing system
Inventor:
Joseph L. Chovan
Patented Case
View Patent ↗
Granted: Jan 26, 1982
Filed: Dec 31, 1979
Inventor
Joseph L. Chovan
Assignee (at issue)
General Electric Company
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.