Granted Patent
Utility
US 4,738,964 · App. 06/882,025
Method of suppressing the immune system comprising administering 5H-thiazolo[2,3-b]quinazoline-3(2H)-one
Inventors:
Grace A. Saeva, Vassil S. Georgiev
Patented Case
View Patent ↗
Granted: Apr 19, 1988
Filed: Jul 3, 1986
Inventors
Grace A. Saeva
Vassil S. Georgiev
Assignee (at issue)
Pennwalt Corporation
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.