Granted Patent
Utility
US 6,002,641 · App. 09/067,206
Apparatus and method for planting seismic sensors
Inventor:
Loring C. Chien
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: Apr 28, 1998
Inventor
Loring C. Chien
Assignee (at issue)
Input/Output, 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.