Granted Patent
Utility
US 5,757,394 · App. 08/534,676
Ink jet print head identification circuit with programmed transistor array
Inventors:
Bruce David Gibson, George Keith Parish
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Sep 27, 1995
Inventors
Bruce David Gibson
George Keith Parish
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.