Granted Patent
Utility
US 4,270,001 · App. 05/814,572
Quaternaries of hydroxyalkylaminoalkylamides
Inventors:
Derek Redmore, Benjamin T. Outlaw
Patented Case
View Patent ↗
Granted: May 26, 1981
Filed: Jul 11, 1977
Inventors
Derek Redmore
Benjamin T. Outlaw
Assignee (at issue)
Petrolite Corporation
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.