Granted Patent
Utility
US 5,206,668 · App. 07/784,185
Method and apparatus for detecting ink flow
Inventors:
Clement C. Lo, Izadpour Khormaee
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Oct 29, 1991
Inventors
Clement C. Lo
Izadpour Khormaee
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.