Granted Patent
Utility
US 4,283,348 · App. 06/078,923
Method of preparing 2-aryl-3-cyclopentanedione compounds
Inventor:
Thomas N. Wheeler
Patented Case
View Patent ↗
Granted: Aug 11, 1981
Filed: Sep 26, 1979
Inventor
Thomas N. Wheeler
Assignee (at issue)
Union Carbide 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.