Granted Patent
Utility
US 6,593,553 · App. 10/106,721
Heating coil assembly and methods for assembling the same
Inventor:
Charles T. Whitfield
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: Mar 26, 2002
Inventor
Charles T. Whitfield
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.