Granted Patent
Utility
US 4,525,461 · App. 06/561,361
Sintered silicon carbide/graphite/carbon composite ceramic body having ultrafine grain microstructure
Inventors:
Wolfgang D. G. Boecker, Laurence N. Hailey
Patented Case
View Patent ↗
Granted: Jun 25, 1985
Filed: Dec 14, 1983
Inventors
Wolfgang D. G. Boecker
Laurence N. Hailey
Assignee (at issue)
Kennecott Holdings Company
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.