Granted Patent
Utility
US 5,502,467 · App. 08/206,765
Ink jet printhead with ink viscosity control
Inventors:
Paul A. Hoisington, Michael A. Cockett
Patented Case
View Patent ↗
Granted: Mar 26, 1996
Filed: Mar 7, 1994
Inventors
Paul A. Hoisington
Michael A. Cockett
Assignee (at issue)
Spectra Group Limited, Inc.
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.