Granted Patent
Utility
US 4,519,053 · App. 06/655,999
Force or pressure feedback control for seismic vibrators
Inventor:
John W. Bedenbender
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Oct 1, 1984
Inventor
John W. Bedenbender
Assignee (at issue)
Texas Instruments Incorporated
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.