Granted Patent
Utility
US 5,658,471 · App. 08/532,439
Fabrication of thermal ink-jet feed slots in a silicon substrate
Inventors:
Ashok Murthy, Lawrence Russell Steward, Charles S. Whitman
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Sep 22, 1995
Inventors
Ashok Murthy
Lawrence Russell Steward
Charles S. Whitman
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.