Granted Patent
Utility
US 6,003,986 · App. 08/550,143
Bubble tolerant manifold design for inkjet cartridge
Inventor:
Brian J. Keefe
Patented Case
View Patent ↗
Granted: Dec 21, 1999
Filed: Oct 30, 1995
Inventor
Brian J. Keefe
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.