Granted Patent
Utility
US 5,955,022 · App. 08/797,838
Process of making an orifice plate for a page-wide ink jet printhead
Inventors:
Kelsey R. Walker, Daniel B. Granzow
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Feb 10, 1997
Inventors
Kelsey R. Walker
Daniel B. Granzow
Assignee (at issue)
Compaq Computer 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.