Granted Patent
Utility
US 4,667,708 · App. 06/819,727
Method and apparatus for filling tanks with liquified gas
Inventor:
Robert H. Jernberg
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Jan 17, 1986
Inventor
Robert H. Jernberg
Assignee (at issue)
Pressure Pack, 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.