Granted Patent
Utility
US 4,775,252 · App. 07/114,176
Thermal printhead actuator responsive to carriage drive and including a four bar linkage and spring
Inventors:
Steven L. Applegate, James J. Molloy, Deh C. Tao
Patented Case
View Patent ↗
Granted: Oct 4, 1988
Filed: Oct 28, 1987
Inventors
Steven L. Applegate
James J. Molloy
Deh C. Tao
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.