Granted Patent
Utility
US 4,257,985 · App. 05/727,335
Compounds by addition of hydroperoxides to .alpha.-.beta.-unsaturated ketones
Inventor:
Wilbur H. McKellin
Patented Case
View Patent ↗
Granted: Mar 24, 1981
Filed: May 7, 1968
Inventor
Wilbur H. McKellin
Assignee (at issue)
Pennwalt Corporation
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.