Granted Patent
Utility
US 4,459,327 · App. 06/151,801
Method for the production of copper-boron carbide composite
Inventor:
Chih-Chung Wang
Patented Case
View Patent ↗
Granted: Jul 10, 1984
Filed: May 21, 1980
Inventor
Chih-Chung Wang
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.