Granted Patent
Utility
US 4,310,670 · App. 06/124,807
Low-temperature, aqueous conversion of 4-picoline derivative to 5-cyano-[3,4'-bipyridin]-6(1H)-one
Inventors:
Karl O. Gelotte, Edward D. Parady
Patented Case
View Patent ↗
Granted: Jan 12, 1982
Filed: Feb 26, 1980
Inventors
Karl O. Gelotte
Edward D. Parady
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.