Granted Patent
Utility
US 4,804,682 · App. 06/930,838
2-chloro-4-((cyanomethyl)thio)phenyl N-methyl carbamate for treating carcinomas
Inventor:
Walter Reifschneider
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: Nov 14, 1986
Inventor
Walter Reifschneider
Assignee (at issue)
Merrell Dow Pharmaceuticals Inc.
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.