Granted Patent
Utility
US 4,259,563 · App. 06/021,415
Method for dynamically tuning a seismic transducer
Inventor:
Paul E. Madeley
Patented Case
View Patent ↗
Granted: Mar 31, 1981
Filed: Mar 19, 1979
Inventor
Paul E. Madeley
Assignee (at issue)
Litton Resources Systems, Inc.
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.