Granted Patent
Utility
US 6,505,468 · App. 09/812,811
Cascade cryogenic thermoelectric cooler for cryogenic and room temperature applications
Inventor:
Rama Venkatasubramanian
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Mar 21, 2001
Inventor
Rama Venkatasubramanian
Assignee (at issue)
Research Triangle Institute
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.