Granted Patent
Utility
US 4,547,330 · App. 06/573,740
Method of preparing an orifice plate for an ink jet printer
Inventor:
William J. Daughton
Patented Case
View Patent ↗
Granted: Oct 15, 1985
Filed: Jan 25, 1984
Inventor
William J. Daughton
Assignee (at issue)
The Mead 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.