Granted Patent
Utility
US 4,939,673 · App. 07/363,317
Method and apparatus for enhancement of display screen resolution
Inventors:
Paul Hanau, M. David Blythe
Patented Case
View Patent ↗
Granted: Jul 3, 1990
Filed: Jun 7, 1989
Inventors
Paul Hanau
M. David Blythe
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.