Granted Patent
Utility
US 4,668,272 · App. 06/815,699
Support and drive system for rotating liquefaction vessel
Inventors:
George C. Newcamp, Robert F. Johnston, John F. McConnell, Paul R. Ross, Jr., Richard A. Caripolti, John Peter
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Jan 2, 1986
Inventors
George C. Newcamp
Robert F. Johnston
John F. McConnell
Paul R. Ross, Jr.
Richard A. Caripolti
John Peter
Assignee (at issue)
PPG Industries, 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.