Granted Patent
Utility
US 5,207,943 · App. 07/638,491
Oxygen absorber for low moisture products
Inventors:
John S. Cullen, George E. McKedy, Christopher S. Nigon, Thomas H. Powers
Patented Case
View Patent ↗
Granted: May 4, 1993
Filed: Jan 7, 1991
Inventors
John S. Cullen
George E. McKedy
Christopher S. Nigon
Thomas H. Powers
Assignee (at issue)
Multiform Desiccants, 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.