Granted Patent
Utility
US 4,232,887 · App. 06/017,764
Lactone compounds containing an indolizine radical
Inventors:
William Joshua Becker, Sheldon Farber, Troy E. Hoover
Patented Case
View Patent ↗
Granted: Nov 11, 1980
Filed: Mar 5, 1979
Inventors
William Joshua Becker
Sheldon Farber
Troy E. Hoover
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.