Granted Patent
Utility
US 4,558,438 · App. 06/335,205
Method and apparatus for dynamically displaying geo-physical information
Inventors:
Richard Jones, John M. Powell
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Dec 28, 1981
Inventors
Richard Jones
John M. Powell
Assignee (at issue)
Gulf Research & Development 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.