Granted Patent
Utility
US 4,656,018 · App. 06/798,910
Cyclic phosphonitrilic halide process
Inventors:
Gerald M. Sulzer, Joseph B. Tedder, Jr., J. Robert Adams, Jr., Matthew K. Juneau
Patented Case
View Patent ↗
Granted: Apr 7, 1987
Filed: Nov 18, 1985
Inventors
Gerald M. Sulzer
Joseph B. Tedder, Jr.
J. Robert Adams, Jr.
Matthew K. Juneau
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.