IP Library Granted Patent US 4,626,538
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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,626,538
App. No.
06/732,986
Filed
1985-05-13
Granted
1986-12-02
Kind
A