Granted Patent
Utility
US 4,286,989 · App. 06/192,270
Formulations for ink jet printing
Inventors:
Leo J. Kadehjian, Harbans S. Sachdev, Clinton David Snyder
Patented Case
View Patent ↗
Granted: Sep 1, 1981
Filed: Sep 30, 1980
Inventors
Leo J. Kadehjian
Harbans S. Sachdev
Clinton David Snyder
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.