Granted Patent
Utility
US 5,164,345 · App. 07/674,830
Al.sub.2 O.sub.3 /B.sub.4 C/SiC composite
Inventors:
Roy W. Rice, Leonard E. Dolhert, Jack H. Enloe
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Mar 21, 1991
Inventors
Roy W. Rice
Leonard E. Dolhert
Jack H. Enloe
Assignee (at issue)
W.R. Grace & Co. Conn.
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.