Granted Patent
Utility
US 4,758,103 · App. 06/852,188
Method and apparatus for quieting the operation of a dot matrix printer
Inventors:
Tim V. Angst, Mark E. Bunke, Phuc Ky Do, Nicholas J. Krull, Demetrios Troupes, Carol E. Wyke
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Apr 15, 1986
Inventors
Tim V. Angst
Mark E. Bunke
Phuc Ky Do
Nicholas J. Krull
Demetrios Troupes
Carol E. Wyke
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.