Granted Patent
Utility
US 5,345,044 · App. 07/875,841
Cordless digitizer using electromagnetic locating signals
Inventor:
Waldo L. Landmeier
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Apr 29, 1991
Inventor
Waldo L. Landmeier
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.