Granted Patent
Utility
US 4,675,424 · App. 06/841,545
Method for making polysilazanes
Inventors:
Roswell E. King, III, Bernard Kanner, Steven P. Hopper, Curtis L. Schilling, Jr.
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Mar 19, 1986
Inventors
Roswell E. King, III
Bernard Kanner
Steven P. Hopper
Curtis L. Schilling, Jr.
Assignee (at issue)
Union Carbide 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.