Granted Patent
Utility
US 4,806,918 · App. 07/042,544
Graphics tablet using a permuted trace ordering scheme
Inventors:
W. Mike Berke, Thomas Malzbender
Patented Case
View Patent ↗
Granted: Feb 21, 1989
Filed: Apr 24, 1987
Inventors
W. Mike Berke
Thomas Malzbender
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.