Granted Patent
Utility
US 6,533,991 · App. 09/597,496
Cooling gas injection nozzle for a vacuum heat treating furnace
Inventor:
Craig A. Moller
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Jun 20, 2000
Inventor
Craig A. Moller
Assignee (at issue)
Ipsen International, GmbH
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.