Granted Patent
Utility
US 6,774,239 · App. 10/219,373
Process for the preparation of N,N′-carbonyldiazoles and azolide salts
Inventors:
Johannes Scherer, Alexander Klausener, Robert Sollner
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Aug 15, 2002
Inventors
Johannes Scherer
Alexander Klausener
Robert Sollner
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.