Granted Patent
Utility
US 4,324,899 · App. 06/155,812
2-Amino-5-cyanothiazoles and their preparation
Inventor:
Mark D. Frishberg
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: Jun 2, 1980
Inventor
Mark D. Frishberg
Assignee (at issue)
EASTMAN KODAK 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.