Granted Patent
Utility
US 4,242,513 · App. 06/017,765
Lactone compounds containing a heterocyclic radical
Inventors:
Troy E. Hoover, Sheldon Farber, William Joshua Becker
Patented Case
View Patent ↗
Granted: Dec 30, 1980
Filed: Mar 5, 1979
Inventors
Troy E. Hoover
Sheldon Farber
William Joshua Becker
Assignee (at issue)
Appleton Papers 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.