Granted Patent
Utility
US 6,131,649 · App. 09/513,738
Heat exchange apparatus
Inventors:
Steven R. Pearl, Charles D. Christy
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Jan 22, 1999
Inventors
Steven R. Pearl
Charles D. Christy
Assignee (at issue)
Millipore 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.