Granted Patent
Utility
US 5,334,370 · App. 08/013,459
Compositions of alkylbenzenes in film-forming materials for visualization of the gastrointestinal tract
Inventors:
Kurt A. Josef, Edward R. Bacon, Kimberly G. Estep, Carl R. Illig, Brent Douty
Patented Case
View Patent ↗
Granted: Aug 2, 1994
Filed: Feb 4, 1993
Inventors
Kurt A. Josef
Edward R. Bacon
Kimberly G. Estep
Carl R. Illig
Brent Douty
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.