Granted Patent
Utility
US 6,766,652 · App. 10/321,584
Dual independent chamber ultra-low temperature freezer
Inventors:
Allan Kelly, Chuan Weng
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Dec 18, 2002
Inventors
Allan Kelly
Chuan Weng
Assignee (at issue)
GSLE Development Corporation
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.