Granted Patent
Utility
US 6,246,367 · App. 09/102,452
Lightning locating system
Inventors:
Ralph J. Markson, Lothar H. Ruhnke
Patented Case
View Patent ↗
Granted: Jun 12, 2001
Filed: Jun 22, 1998
Inventors
Ralph J. Markson
Lothar H. Ruhnke
Assignee (at issue)
Airborne Research Associates, 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.