Granted Patent
Utility
US 5,977,026 · App. 08/902,650
Herbicidal mixtures
Inventor:
Helmut Siegfried Baltruschat
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Jul 30, 1997
Inventor
Helmut Siegfried Baltruschat
Assignee (at issue)
American Cyanamid Company
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.