Granted Patent
Utility
US 4,551,249 · App. 06/584,611
Modular liquid chromatography column apparatus
Inventors:
Carl L. Shackelford, Kenneth Rainin
Patented Case
View Patent ↗
Granted: Nov 5, 1985
Filed: Feb 29, 1984
Inventors
Carl L. Shackelford
Kenneth Rainin
Assignee (at issue)
Rainin Instrument, LLC
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.