Granted Patent
Utility
US 5,736,997 · App. 08/639,385
Thermal ink jet printhead driver overcurrent protection scheme
Inventors:
John Philip Bolash, Mark Joseph Edwards
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Apr 29, 1996
Inventors
John Philip Bolash
Mark Joseph Edwards
Assignee (at issue)
Lexmark International, Inc.
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.