Granted Patent
Utility
US 4,612,651 · App. 06/613,281
Heat treating furnace with heating element hangers and radiation shield spacers
Inventors:
Craig A. Moller, Eric H. Wolter
Patented Case
View Patent ↗
Granted: Sep 16, 1986
Filed: May 24, 1984
Inventors
Craig A. Moller
Eric H. Wolter
Assignee (at issue)
Abar Ipsen Industries, 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.