Granted Patent
Utility
US 5,406,319 · App. 08/065,920
Enhanced U type ink jet printheads
Inventors:
Donald J. Hayes, John R. Pies, David B. Wallace
Patented Case
View Patent ↗
Granted: Apr 11, 1995
Filed: May 20, 1993
Inventors
Donald J. Hayes
John R. Pies
David B. Wallace
Assignee (at issue)
Compaq Computer Corporation
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.