Granted Patent
Utility
US 6,612,677 · App. 09/915,980
Ink drop sensor
Inventors:
Wen-Li Su, Patrick Therien, Steve O'Hara
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Jul 25, 2001
Inventors
Wen-Li Su
Patrick Therien
Steve O'Hara
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.