Granted Patent
Utility
US 4,707,583 · App. 06/718,376
Plasma heated sintering furnace
Inventors:
Jonathan J. Kim, Viswanathan Venkateswaran
Patented Case
View Patent ↗
Granted: Nov 17, 1987
Filed: Apr 1, 1985
Inventors
Jonathan J. Kim
Viswanathan Venkateswaran
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.