Granted Patent
Utility
US 6,688,853 · App. 10/036,514
Control valve for regulating flow between two chambers relative to another chamber
Inventors:
Michael J. Burkett, William Ryan Page
Patented Case
View Patent ↗
Granted: Feb 10, 2004
Filed: Jan 7, 2002
Inventors
Michael J. Burkett
William Ryan Page
Assignee (at issue)
HONEYWELL INTERNATIONAL INC.
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.