Granted Patent
Utility
US 5,043,741 · App. 07/536,961
Controlled ink drop spreading in hot melt ink jet printing
Inventor:
Charles W. Spehrley, Jr.
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Jun 12, 1990
Inventor
Charles W. Spehrley, Jr.
Assignee (at issue)
Spectra Group Limited, 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.