Granted Patent
Utility
US 5,854,449 · App. 08/526,185
High accuracy digitizer system
Inventor:
David Adkins
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Sep 11, 1995
Inventor
David Adkins
Assignee (at issue)
CalComp Inc.
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.