Granted Patent
Utility
US 4,336,088 · App. 06/258,222
Method of fabricating an improved multi-layer ceramic substrate
Inventors:
Richard J. Hetherington, George E. Melvin, Stephen A. Milkovich, Ernest N. Urfer
Patented Case
View Patent ↗
Granted: Jun 22, 1982
Filed: Apr 27, 1981
Inventors
Richard J. Hetherington
George E. Melvin
Stephen A. Milkovich
Ernest N. Urfer
Assignee (at issue)
International Business Machines 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.