Granted Patent
Utility
US 5,201,604 · App. 07/738,060
Field configurable sonic grade control
Inventors:
Christopher Ferguson, Joseph E. Musil
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Jul 30, 1991
Inventors
Christopher Ferguson
Joseph E. Musil
Assignee (at issue)
Raytheon 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.