Granted Patent
Utility
US 6,172,345 · App. 09/412,666
High-voltage cartridge heater and method of manufacturing same
Inventors:
Gary Dial, Sidney L. Furlong, Amy M. Barker
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Oct 5, 1999
Inventors
Gary Dial
Sidney L. Furlong
Amy M. Barker
Assignee (at issue)
Emerson Electric Co.
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.