Granted Patent
Utility
US 6,253,577 · App. 09/533,252
Cryogenic air separation process for producing elevated pressure gaseous oxygen
Inventors:
Bayram Arman, Dante Patrick Bonaquist, Joseph Alfred Weber, Mark Edward Vincett
Patented Case
View Patent ↗
Granted: Jul 3, 2001
Filed: Mar 23, 2000
Inventors
Bayram Arman
Dante Patrick Bonaquist
Joseph Alfred Weber
Mark Edward Vincett
Assignee (at issue)
Praxair Technology, 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.