Granted Patent
Utility
US 4,247,712 · App. 06/092,599
Preservation of aqueous systems with 2-chloro-3-oxobutyramide derivatives
Inventors:
Harold A. Brandman, Milton Manowitz, David L. Coffen
Patented Case
View Patent ↗
Granted: Jan 27, 1981
Filed: Nov 8, 1979
Inventors
Harold A. Brandman
Milton Manowitz
David L. Coffen
Assignees (at issue)
Givaudan AG
HOFFMANN-LA ROCHE INC.
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.