Granted Patent
Utility
US 4,666,873 · App. 06/541,914
Aluminum nitride-boron nitride composite article and method of making same
Inventors:
John R. Morris, Richard A. Tanzilli
Patented Case
View Patent ↗
Granted: May 19, 1987
Filed: Oct 14, 1983
Inventors
John R. Morris
Richard A. Tanzilli
Assignee (at issue)
General Electric 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.