Granted Patent
Utility
US 4,361,845 · App. 06/244,381
Device for preventing the contamination of ink jet components
Inventor:
Gordon James Smith
Patented Case
View Patent ↗
Granted: Nov 30, 1982
Filed: Mar 16, 1981
Inventor
Gordon James Smith
Assignee (at issue)
International Business Machines 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.