Granted Patent
Utility
US 6,346,308 · App. 09/485,517
Active oxygen scavenger compositions and their use in packaging articles
Inventors:
Paul J. Cahill, Joel A. Richardson, George E. Rotter, Granville L. Smyser, Roman F. Barski, Raymond V. Wass, Walter M. Nyderek
Patented Case
View Patent ↗
Granted: Feb 12, 2002
Filed: Feb 11, 2000
Inventors
Paul J. Cahill
Joel A. Richardson
George E. Rotter
Granville L. Smyser
Roman F. Barski
Raymond V. Wass
Walter M. Nyderek
Assignee (at issue)
BP Corporation North America 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.