Granted Patent
Utility
US 5,972,875 · App. 09/173,347
Low-foaming amine oxide surfactant concentrate and method of manufacture
Inventors:
Terry Crutcher, Timothy E. Janota
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Oct 15, 1998
Inventors
Terry Crutcher
Timothy E. Janota
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.