Granted Patent
Utility
US 4,536,379 · App. 06/500,522
Production of silicon carbide
Inventors:
Walter H. Carlson, Gerald B. Zander, George C. Hanna, Kevin L. Burmeister
Patented Case
View Patent ↗
Granted: Aug 20, 1985
Filed: Jun 2, 1983
Inventors
Walter H. Carlson
Gerald B. Zander
George C. Hanna
Kevin L. Burmeister
Assignee (at issue)
Graphite Sales, Inc.
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.