Granted Patent
Utility
US 4,572,204 · App. 06/591,728
Pressure dome with compliant chamber
Inventor:
Thomas P. Stephens
Patented Case
View Patent ↗
Granted: Feb 25, 1986
Filed: Mar 21, 1984
Inventor
Thomas P. Stephens
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.