Granted Patent
Utility
US 4,847,021 · App. 07/189,762
Process for producing high density carbon and graphite articles
Inventors:
Lionel C. Montgomery, John M. Criscione
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: May 3, 1988
Inventors
Lionel C. Montgomery
John M. Criscione
Assignee (at issue)
Union Carbide 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.