Granted Patent
Utility
US 4,199,600 · App. 05/934,294
Preservation of aqueous systems with .alpha.-halo-.beta.-aminocrotonic acid esters
Inventors:
Harold A. Brandman, Milton Manowitz, David L. Coffen
Patented Case
View Patent ↗
Granted: Apr 22, 1980
Filed: Aug 17, 1978
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.