Granted Patent
Utility
US 4,442,513 · App. 06/345,987
Sonar transceiver system and method
Inventor:
Ronald C. Mead
Patented Case
View Patent ↗
Granted: Apr 10, 1984
Filed: Feb 5, 1982
Inventor
Ronald C. Mead
Assignee (at issue)
Bendix Limited
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.