Granted Patent
Utility
US 4,813,396 · App. 06/909,696
Methods and apparatus for changing liquid temperature
Inventors:
Jack Sargeant, William F. Raleigh, Attilio G. Giordani
Patented Case
View Patent ↗
Granted: Mar 21, 1989
Filed: Sep 22, 1986
Inventors
Jack Sargeant
William F. Raleigh
Attilio G. Giordani
Assignee (at issue)
Teledyne Industries, 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.