Granted Patent
Utility
US 5,467,290 · App. 08/108,364
Survey system and method
Inventors:
Fred S. Darland, Jerry A. Durgin
Patented Case
View Patent ↗
Granted: Nov 14, 1995
Filed: Aug 18, 1993
Inventors
Fred S. Darland
Jerry A. Durgin
Assignee (at issue)
Atlantic Richfield 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.