Granted Patent
Utility
US 5,455,424 · App. 08/227,270
Earth sensor for satellites
Inventor:
Alan P. Doctor
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Apr 13, 1994
Inventor
Alan P. Doctor
Assignee (at issue)
Servo Corporation of America
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.