Granted Patent
Utility
US 4,771,295 · App. 06/880,774
Thermal ink jet pen body construction having improved ink storage and feed capability
Inventors:
Jeffrey P. Baker, Duong La, Randy Coverstone
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Jul 1, 1986
Inventors
Jeffrey P. Baker
Duong La
Randy Coverstone
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.