Granted Patent
Utility
US 4,533,871 · App. 06/291,409
Range-enable information system for plural mobile objects
Inventor:
Peter C. Boetzkes
Patented Case
View Patent ↗
Granted: Aug 6, 1985
Filed: Aug 10, 1981
Inventor
Peter C. Boetzkes
Assignee (at issue)
DSL Dynamic Sciences Limited
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.