Granted Patent
Utility
US 4,945,178 · App. 07/314,994
Preparation of 4-carboalkoxy-1,3-cyclohexanedione type compounds
Inventor:
Charles A. McCombs
Patented Case
View Patent ↗
Granted: Jul 31, 1990
Filed: Feb 24, 1989
Inventor
Charles A. McCombs
Assignee (at issue)
EASTMAN KODAK 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.