Granted Patent
Utility
US 6,001,057 · App. 09/048,768
Self-contained isolation and enviromental protection system
Inventors:
Richard Anthony Bongiovanni, Peter Andrew Barnett, Douglas Ellwood Shultz
Patented Case
View Patent ↗
Granted: Dec 14, 1999
Filed: Mar 26, 1998
Inventors
Richard Anthony Bongiovanni
Peter Andrew Barnett
Douglas Ellwood Shultz
Assignee (at issue)
NORTHROP GRUMMAN 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.