Granted Patent
Utility
US 4,626,538 · App. 06/732,986
[7-(3-disubstituted amino)phenyl]pyrazolo[1,5-a]pyrimidines
Inventors:
John P. Dusza, Andrew S. Tomcufcik, Jay D. Albright
Patented Case
View Patent ↗
Granted: Dec 2, 1986
Filed: May 13, 1985
Inventors
John P. Dusza
Andrew S. Tomcufcik
Jay D. Albright
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.