Granted Patent
Utility
US 5,119,089 · App. 07/658,290
Downhole seismic sensor cable
Inventor:
Hanna Khalil
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: Feb 20, 1991
Inventor
Hanna Khalil
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.