Granted Patent
Utility
US 4,675,057 · App. 06/834,570
Method of heat treating using eddy current temperature determination
Inventors:
George D. Pfaffmann, Donald E. Novorsky
Patented Case
View Patent ↗
Granted: Jun 23, 1987
Filed: Feb 28, 1986
Inventors
George D. Pfaffmann
Donald E. Novorsky
Assignee (at issue)
Tocco, 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.