Granted Patent
Utility
US 4,874,491 · App. 07/103,040
Method of supplying buffer solutions to electrophoretic separation procedures
Inventor:
Ralph Stalberg
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Sep 14, 1987
Inventor
Ralph Stalberg
Assignee (at issue)
Pharmacia AB
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.