Granted Patent
Utility
US 5,482,211 · App. 08/230,656
Supercritical fluid cleaning apparatus without pressure vessel
Inventors:
Sidney C. Chao, Thomas B. Stanford, Edward J. Palen, Chris Lee
Patented Case
View Patent ↗
Granted: Jan 9, 1996
Filed: Apr 21, 1994
Inventors
Sidney C. Chao
Thomas B. Stanford
Edward J. Palen
Chris Lee
Assignee (at issue)
Hughes Aircraft Company
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.