Granted Patent
Utility
US 5,528,248 · App. 08/293,048
Personal digital location assistant including a memory cartridge, a GPS smart antenna and a personal computing device
Inventors:
Glenn C. Steiner, Lloyd H. Banta, Matthew M. Trask
Patented Case
View Patent ↗
Granted: Jun 18, 1996
Filed: Aug 19, 1994
Inventors
Glenn C. Steiner
Lloyd H. Banta
Matthew M. Trask
Assignee (at issue)
Trimble Navigation 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.