Granted Patent
Utility
US 5,498,608 · App. 08/178,578
Use of 2-hydroxy-5-phenylazobenzoic acid derivatives as colon cancer chemopreventative and chemotherapeutic agents
Inventors:
Lorin K. Johnson, Marvin H. Sleisenger
Patented Case
View Patent ↗
Granted: Mar 12, 1996
Filed: Jan 7, 1994
Inventors
Lorin K. Johnson
Marvin H. Sleisenger
Assignee (at issue)
Salix Pharmaceuticals, 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.