Granted Patent
Utility
US 6,660,103 · App. 10/112,092
Cleaning process for ink jet printheads
Inventors:
Ian R. Johnston, Greg Sinchar
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Mar 28, 2002
Inventors
Ian R. Johnston
Greg Sinchar
Assignee (at issue)
VUTEk, Incorporated
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.