Granted Patent
Utility
US 5,607,660 · App. 08/246,888
Compositions of iodophenoxy alkanes and iodophenyl ethers in combination with cellulose derivatives for visualization of the gastrointestinal tract
Inventors:
Robert W. Lee, Carl R. Illig, Thomas J. Caulfield
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: May 20, 1994
Inventors
Robert W. Lee
Carl R. Illig
Thomas J. Caulfield
Assignee (at issue)
Sterling Winthrop 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.