Granted Patent
Utility
US 6,114,581 · App. 09/381,675
Method for producing N-alkyl-N'-nitroguanidines
Inventor:
Reinhard Lantzsch
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Sep 22, 1999
Inventor
Reinhard Lantzsch
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.