Granted Patent
Utility
US 6,775,474 · App. 10/136,214
Heat transfer system without a rotating seal
Inventor:
George B. Desloge
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: May 1, 2002
Inventor
George B. Desloge
Assignee (at issue)
WATLOW ELECTRIC MANUFACTURING COMPANY
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.