Granted Patent
Utility
US 4,769,716 · App. 06/920,489
Facsimile transmission using enhanced symbol prototypes with precalculated front and back white spaces
Inventors:
Richard G. Casey, James C. King
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: Oct 17, 1986
Inventors
Richard G. Casey
James C. King
Assignee (at issue)
International Business Machines Corporation
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.