Granted Patent
Utility
US 4,337,495 · App. 06/177,812
Carbon electrode having metallic heat sink
Inventors:
William V. Carney, Loren A. Singer, Jr.
Patented Case
View Patent ↗
Granted: Jun 29, 1982
Filed: Jun 13, 1980
Inventors
William V. Carney
Loren A. Singer, Jr.
Assignee (at issue)
Porta Systems 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.