Granted Patent
Utility
US 6,485,232 · App. 09/549,899
Low cost, self regulating heater for use in an in situ thermal desorption soil remediation system
Inventors:
Harold J. Vinegar, George Leo Stegemeier
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Apr 14, 2000
Inventors
Harold J. Vinegar
George Leo Stegemeier
Assignee (at issue)
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
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.