Granted Patent
Utility
US 4,828,757 · App. 07/168,024
Liquid cleaning compositions containing polyether amide surfactants as thickening agents
Inventors:
Carter G. Naylor, Jiang-Jen Lin, George P. Speranza
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Mar 14, 1988
Inventors
Carter G. Naylor
Jiang-Jen Lin
George P. Speranza
Assignee (at issue)
Texaco Chemical 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.