Granted Patent
Utility
US 6,057,870 · App. 09/283,459
Ribbon drive system for a thermal demand printer
Inventors:
Dan E. Monnier, David L. Poole, David A. West, Daniel F. Donato, James W. Ensinger, William J. Hamman, Kenneth V. Naegele
Patented Case
View Patent ↗
Granted: May 2, 2000
Filed: Apr 1, 1999
Inventors
Dan E. Monnier
David L. Poole
David A. West
Daniel F. Donato
James W. Ensinger
William J. Hamman
Kenneth V. Naegele
Assignee (at issue)
ZEBRA TECHNOLOGIES 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.