Granted Patent
Utility
US 6,621,056 · App. 09/986,568
Heater assembly with a non-uniform cross section
Inventor:
Jimmy L. Sherrill
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Nov 9, 2001
Inventor
Jimmy L. Sherrill
Assignee (at issue)
TUTCO, LLC
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.