Granted Patent
Utility
US 5,156,683 · App. 07/514,852
Apparatus for magnetic induction edge heaters with frequency modulation
Inventor:
Nicholas V. Ross
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Apr 26, 1990
Inventor
Nicholas V. Ross
Assignee (at issue)
Ajax Magnethermic 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.