Granted Patent
Utility
US 5,894,674 · App. 08/750,079
Method and apparatus for determining direction
Inventor:
Howard Feldman
Patented Case
View Patent ↗
Granted: Apr 20, 1999
Filed: Jan 28, 1997
Inventor
Howard Feldman
Assignee (at issue)
International Mobile Satellite Organization
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.