Granted Patent
Utility
US 5,521,618 · App. 08/060,297
Dual element switched digital drive system for an ink jet printhead
Inventors:
James L. Stortz, David B. Wallace
Patented Case
View Patent ↗
Granted: May 28, 1996
Filed: May 10, 1993
Inventors
James L. Stortz
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.