Granted Patent
Utility
US 4,945,184 · App. 07/367,902
Preparation of unsaturated ketones
Inventors:
Joseph Pugach, Jeffrey S. Salek
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Jun 19, 1989
Inventors
Joseph Pugach
Jeffrey S. Salek
Assignee (at issue)
Aristech Chemical Company
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.