Granted Patent
Utility
US 6,552,221 · App. 09/672,893
Process control for acetic acid manufacture
Inventors:
Noel C. Hallinan, James A. Hinnenkamp, Javan Shelly
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Sep 29, 2000
Inventors
Noel C. Hallinan
James A. Hinnenkamp
Javan Shelly
Assignee (at issue)
Millennium Petrochemicals 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.