Granted Patent
Utility
US 5,909,231 · App. 08/550,437
Gas flush to eliminate residual bubbles
Inventors:
Winthrop D. Childers, Brian J. Keefe, Barbara Parcells, Frank Drogo, Shailendra Kumar, Steven L. Webb, Hanno Ix, Kai-Kong Iu
Patented Case
View Patent ↗
Granted: Jun 1, 1999
Filed: Oct 30, 1995
Inventors
Winthrop D. Childers
Brian J. Keefe
Barbara Parcells
Frank Drogo
Shailendra Kumar
Steven L. Webb
Hanno Ix
Kai-Kong Iu
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.