Granted Patent
Utility
US 4,208,425 · App. 05/949,778
Novel diketones
Inventor:
Guy D. Diana
Patented Case
View Patent ↗
Granted: Jun 17, 1980
Filed: Oct 10, 1978
Inventor
Guy D. Diana
Assignee (at issue)
Sterling Drug, Inc.
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.