Granted Patent
Utility
US 5,551,488 · App. 08/450,085
Method of filling a two-compartments storage tank with cryogenic fluid
Inventor:
Anker Gram
Patented Case
View Patent ↗
Granted: Sep 3, 1996
Filed: May 25, 1995
Inventor
Anker Gram
Assignee (at issue)
Process Systems 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.