Granted Patent
Utility
US 4,549,188 · App. 06/569,354
Orifice plate for ink jet printer
Inventor:
Craig R. Shackleton
Patented Case
View Patent ↗
Granted: Oct 22, 1985
Filed: Jan 9, 1984
Inventor
Craig R. Shackleton
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.