Granted Patent
Utility
US 6,465,658 · App. 09/907,320
Process for the preparation of N,N′-carbonyldiazoles and azolide salts
Inventors:
Johannes Scherer, Alexander Klausener, Robert Sollner
Patented Case
View Patent ↗
Granted: Oct 15, 2002
Filed: Jul 17, 2001
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.