Granted Patent
Utility
US 6,744,396 · App. 10/261,338
Surveillance and collision avoidance system with compound symbols
Inventors:
Cyro A. Stone, Kathryn W. Ybarra, Tom V. Eich
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Sep 30, 2002
Inventors
Cyro A. Stone
Kathryn W. Ybarra
Tom V. Eich
Assignee (at issue)
AVIATION COMMUNICATION & SURVEILLANCE SYSTEMS, LLC
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.