Granted Patent
Utility
US 4,670,141 · App. 06/742,265
Method and apparatus for facilitating compression of packing material in a liquid chromatography column
Inventors:
Carl L. Shackelford, Kenneth Rainin
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Jun 7, 1985
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.