Granted Patent
Utility
US 6,284,762 · App. 09/272,917
Fungicidal 6-(2-halo-4-alkoxyphenyl)-triazolopyrimidines
Inventor:
Waldemar Pfrengle
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Mar 19, 1999
Inventor
Waldemar Pfrengle
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.