Granted Patent
Utility
US 4,299,989 · App. 06/145,952
Preparation of ketones
Inventors:
Alan R. Dodds, Tamotsu Imai
Patented Case
View Patent ↗
Granted: Nov 10, 1981
Filed: May 2, 1980
Inventors
Alan R. Dodds
Tamotsu Imai
Assignee (at issue)
UOP LLC
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.