Granted Patent
Utility
US 4,920,139 · App. 07/211,957
Alpha-alkyl-alpha-(4-halophenyl)-1H-1,2,4-triazole-1-propanenitrile
Inventor:
Ted Tsutomu Fujimoto
Patented Case
View Patent ↗
Granted: Apr 24, 1990
Filed: Jun 27, 1988
Inventor
Ted Tsutomu Fujimoto
Assignee (at issue)
Rohm and Haas 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.