Granted Patent
Utility
US 5,425,895 · App. 08/278,770
Block detergent containing nitrilotriacetic acid
Inventors:
Thomas W. Backes, Sean D. Dingman, Sheldon P. Verrett
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Jul 22, 1994
Inventors
Thomas W. Backes
Sean D. Dingman
Sheldon P. Verrett
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.