Granted Patent
Utility
US 4,952,701 · App. 07/284,965
Preparation of 4-amino-1,2,4-triazol-5-ones
Inventors:
Klaus-Helmut Muller, Klaus Konig, Peter Heitkamper
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Dec 15, 1988
Inventors
Klaus-Helmut Muller
Klaus Konig
Peter Heitkamper
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.