Granted Patent
Utility
US 5,843,294 · App. 07/592,833
Capillary electrophoresis sample injection technique
Inventor:
Robert W. Allington
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Oct 4, 1990
Inventor
Robert W. Allington
Assignee (at issue)
Isco, 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.