Granted Patent
Utility
US 5,973,299 · App. 08/927,879
System and method for heater control for evaporation of cryogenic fluids for cooling scientific instruments
Inventor:
John R. Reader, Jr.
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Sep 11, 1997
Inventor
John R. Reader, Jr.
Assignee (at issue)
TA Instruments
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.