Granted Patent
Utility
US 5,458,852 · App. 07/887,526
Diagnostic devices for the controlled movement of reagents without membranes
Inventor:
Kenneth F. Buechler
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: May 21, 1992
Inventor
Kenneth F. Buechler
Assignee (at issue)
Biosite Diagnostics, Inc.
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.