Granted Patent
Utility
US 5,554,536 · App. 08/369,212
Biological analysis device having improved contamination prevention
Inventor:
Donald B. Rising
Patented Case
View Patent ↗
Granted: Sep 10, 1996
Filed: Jan 5, 1995
Inventor
Donald B. Rising
Assignee (at issue)
Millipore Investment Holdings, Ltd.
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.