Granted Patent
Utility
US 4,249,998 · App. 06/069,526
Apparatus and process for producing copper-boron carbide composite by electrolytic entrapment
Inventor:
Thomas Wilder, III
Patented Case
View Patent ↗
Granted: Feb 10, 1981
Filed: Aug 24, 1979
Inventor
Thomas Wilder, III
Assignee (at issue)
Kennecott Copper 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.