Granted Patent
Utility
US 4,840,714 · App. 07/049,739
Electroblotting technique for transferring specimens from a polyacrylamide electrophoresis or like gel onto a membrane
Inventor:
William J. Littlehales
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: May 13, 1987
Inventor
William J. Littlehales
Assignee (at issue)
American Bionetics, 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.