Granted Patent
Utility
US 4,700,199 · App. 06/793,354
Print quality controller for a thermal printer
Inventor:
Frank J. Horlander
Patented Case
View Patent ↗
Granted: Oct 13, 1987
Filed: Oct 31, 1985
Inventor
Frank J. Horlander
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.