Granted Patent
Utility
US 5,512,243 · App. 08/420,270
Cyclohexanedione oxygen scavengers
Inventor:
Paul V. Roling
Patented Case
View Patent ↗
Granted: Apr 30, 1996
Filed: Apr 11, 1995
Inventor
Paul V. Roling
Assignee (at issue)
Betz Laboratories, 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.