Granted Patent
Utility
US 4,257,907 · App. 06/041,267
Disinfectant cleaning compositions
Inventors:
Robert P. Langguth, Kathie J. Tryson
Patented Case
View Patent ↗
Granted: Mar 24, 1981
Filed: May 21, 1979
Inventors
Robert P. Langguth
Kathie J. Tryson
Assignee (at issue)
Monsanto 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.