Granted Patent
Utility
US 6,673,620 · App. 09/549,414
Fluid exchange in a chamber on a microscope slide
Inventors:
Herbert H. Loeffler, Steven A. Bogen
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Apr 14, 2000
Inventors
Herbert H. Loeffler
Steven A. Bogen
Assignee (at issue)
Cytologix 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.