Granted Patent
Utility
US 4,586,184 · App. 06/544,171
Acoustically controlled frequency shifted cavity for electromagnetic radiation
Inventor:
Larry Hess
Patented Case
View Patent ↗
Granted: Apr 29, 1986
Filed: Oct 21, 1983
Inventor
Larry Hess
Assignee (at issue)
Chevron Research 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.