Granted Patent
Utility
US 5,633,280 · App. 08/451,085
Urethanes and ureas that induce cytokine production
Inventors:
Semiramis Ayral-Kaloustian, Steven R. Schow, Mila T. Du, James Gibbons
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: May 25, 1995
Inventors
Semiramis Ayral-Kaloustian
Steven R. Schow
Mila T. Du
James Gibbons
Assignee (at issue)
American Cyanamid Company
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.