Granted Patent
Utility
US 5,143,749 · App. 07/725,892
Method for treating a graphite or carbon body to form a protective coating
Inventors:
Francis E. Wise, Philip Dennis Coleman
Patented Case
View Patent ↗
Granted: Sep 1, 1992
Filed: Jul 1, 1991
Inventors
Francis E. Wise
Philip Dennis Coleman
Assignee (at issue)
UCAR Carbon Technology 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.