Granted Patent
Utility
US 4,718,239 · App. 07/022,072
Cryogenic storage vessel
Inventors:
Jeffert John Nowobilski, Richard C. Cipolla
Patented Case
View Patent ↗
Granted: Jan 12, 1988
Filed: Mar 5, 1987
Inventors
Jeffert John Nowobilski
Richard C. Cipolla
Assignee (at issue)
Union Carbide 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.