Granted Patent
Utility
US 4,582,204 · App. 06/510,113
Column systems for chromatography and the like
Inventor:
Alfred Wright
Patented Case
View Patent ↗
Granted: Apr 15, 1986
Filed: Jul 1, 1983
Inventor
Alfred Wright
Assignee (at issue)
Amicon Wright Ltd.
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.