Granted Patent
Utility
US 5,877,458 · App. 08/754,310
Surface position location system and method
Inventor:
Mark Flowers
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Nov 21, 1996
Inventor
Mark Flowers
Assignee (at issue)
KKE/Explore Acquisition Corp.
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.