Granted Patent
Utility
US 5,633,374 · App. 08/553,308
Pyrimidine, cyanoguanidines as K-channel blockers
Inventors:
Stephen J. Humphrey, Kaushik D. Meisheri, James H. Ludens, Jackson B. Hester, Jr.
Patented Case
View Patent ↗
Granted: May 27, 1997
Filed: Nov 20, 1995
Inventors
Stephen J. Humphrey
Kaushik D. Meisheri
James H. Ludens
Jackson B. Hester, Jr.
Assignee (at issue)
The Upjohn Co.
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.