Granted Patent
Utility
US 5,153,326 · App. 07/690,028
Preparation of 4-amino-1,2,4-triazol-5-ones
Inventors:
Klaus Konig, Klaus-Helmut Muller, Lothar Rohe
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Apr 23, 1991
Inventors
Klaus Konig
Klaus-Helmut Muller
Lothar Rohe
Assignee (at issue)
Bayer Aktiengesellschaft
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.