Granted Patent
Utility
US 5,135,397 · App. 07/545,213
3-D weather for digital radar landmass simulation
Inventor:
Craig S. Yen
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Jun 28, 1990
Inventor
Craig S. Yen
Assignee (at issue)
Hughes Aircraft Company
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.