Granted Patent
Utility
US 4,734,471 · App. 06/881,610
Method of curing polyfluoroalkoxyphosphazene
Inventor:
Suae-Chen Chang
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Jul 3, 1986
Inventor
Suae-Chen Chang
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.