Granted Patent
Utility
US 4,289,862 · App. 06/167,748
Liquid phosphazene compositions
Inventors:
Edwin D. Hornbaker, Hsueh M. Li
Patented Case
View Patent ↗
Granted: Sep 15, 1981
Filed: Jul 14, 1980
Inventors
Edwin D. Hornbaker
Hsueh M. Li
Assignee (at issue)
Ethyl 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.