Granted Patent
Utility
US 4,450,342 · App. 06/452,994
Thermal print head
Inventors:
Willie Goff, Jr., James M. Rakes, Errol R. Williams
Patented Case
View Patent ↗
Granted: May 22, 1984
Filed: Dec 27, 1982
Inventors
Willie Goff, Jr.
James M. Rakes
Errol R. Williams
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.