Granted Patent
Utility
US 5,113,480 · App. 07/534,815
Fluid heater utilizing dual heating elements interconnected with conductive jumper
Inventors:
Robert A. Murphy, Rodney R. Syler, William H. Slattery
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Jun 7, 1990
Inventors
Robert A. Murphy
Rodney R. Syler
William H. Slattery
Assignee (at issue)
Apcom, Inc.
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.